Document:

MARKLAND TECHNOLOGIES, INC.

                AMENDED SECURED CONVERTIBLE REVOLVING CREDIT NOTE

$4,500,000                                                   New York, New York
                                                                 June 4, 2002

THIS NOTE AND THE SECURITIES ISSUABLE UPON CONVERSION HEREOF (COLLECTIVELY THE
"SECURITIES") WERE ISSUED IN A TRANSACTION EXEMPT FROM REGISTRATION UNDER THE
SECURITIES ACT OF 1933, AS AMENDED ("SECURITIES ACT"), AND APPLICABLE STATE
SECURITIES LAWS. THE SECURITIES REPRESENTED HEREBY HAVE BEEN ACQUIRED FOR
INVESTMENT AND MAY NOT BE SOLD OR TRANSFERRED UNLESS SUCH SALE OR TRANSFER IS
COVERED BY AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT AND
APPLICABLE STATE SECURITIES LAW OR, IN THE OPINION OF COUNSEL TO THE ISSUER, IS
EXEMPT FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT AND SUCH LAWS.

                              Due December 31, 2002

         FOR VALUE RECEIVED, the undersigned, MARKLAND TECHNOLOGIES, INC., a
Florida corporation with its principal offices and place of business at 49
Quinnipiac Avenue, Unit H, North Haven, CT 06473 (the "Borrower"), promises to
pay to the order of MARKET LLC, a Cayman Islands, BVI limited liability company
with an address at c/o Citco Trustees (Cayman) Limited, P.O. Box 31106 SMB,
Grand Cayman, Cayman Islands, British West Indies (the "Lender"), or at such
other place as may be designated from time to time by the Lender, the unpaid
amount of all sums that have been advanced to or for the benefit of the Borrower
in accordance with the terms hereof, not to exceed the aggregate principal sum
of FOUR MILLION FIVE HUNDRED THOUSAND DOLLARS ($4,500,000), lawful money of the
United States of America, plus interest on the unpaid principal balance computed
from the date hereof, at the per annum rate set forth below. Unless otherwise
stated herein, capitalized terms shall have the meanings as set forth in that
certain Loan and Security Agreement dated August 5, 1999 as amended, among
Lender and Borrower and Vidikron of America, Inc. (Vidikron"), Borrower's
subsidiary (the "Loan Agreement").

         1. Interest.  This Note shall bear  interest  at the rate per
annum equal to six (6%) percent per annum  calculated  on the basis of a 360-day
year and actual number of days elapsed.

         Notwithstanding any provision to the contrary contained herein, it is
expressly understood and agreed between the Lender and the Borrower that the
Lender shall not collect a rate of interest on any obligation or liability due
and owing by the Borrower to the Lender in excess of the maximum contract rate
of interest permitted by law. It is the intent of the Lender and the Borrower
that the interest laws adopted by the State of New York shall govern the
relationship between the parties hereto, but in the event of a final
adjudication to the contrary, the Borrower, nunc pro tunc, shall be obligated to
pay to the Lender only such interest as then shall be permitted by the law of
the jurisdiction found to govern the contract relationship between the Borrower
and the Lender. All interest found in excess of that rate of interest allowed
and collected by the Lender shall be applied to the balance of the principal due
hereunder in such manner as to prevent the payment and collection of interest in
excess of the rate permitted under applicable law.

<PAGE>

         2. Security Interest. This Note is secured by (a) a continuing
first-in-priority security interest in substantially all of the Borrower's
assets as provided for in that certain Amendment and Assignment and Assumption
Agreement dated September 21, 2001 by and between Borrower and Lender (the
"Amendment") , and (b) a continuing first-in-priority security interest in
substantially all of the Vidikron's assets as provided for in the Loan Agreement
and reaffirmed in the Amendment and that certain Debt Restructuring Agreement
dated June 4, 2002 between and among Borrower, Lender and Vidikron (the "Debt
Restructuring Agreement").

         3. No Novation. The indebtedness of the Borrower incurred by reason of
revolving loans made pursuant to the Loan Agreement is evidenced by prior notes
issued pursuant to the Loan Agreement to Borrower or its
predecessor-in-interest, including, most recently, a $4,500,000 Revolving Credit
Promissory Note payable by Borrower. (the "Prior Note"). Nothing herein or in
any other document shall be construed to extinguish or deem the Prior Note
satisfied, or to be a novation of the Prior Note or to release or terminate any
lien or security interest that secures payment of the Prior Note. This Note
shall be in partial renewal, continuation and modification of, but not in
revocation or discharge of, the Prior Note, and the indebtedness thereunder
shall be deemed expressly incorporated herein.

         This Note evidences the Revolving Credit Loan described in and is the
Revolving Credit Note referred to in the Loan Agreement and is governed by and
entitled to the benefits contained in the Loan Agreement and is secured by the
security interests granted therein and in the other Loan Documents referred to
and described therein, which, among other things, contain provisions for
acceleration of the maturity hereof upon the occurrence of certain events, and
is being executed and delivered pursuant to the Debt Restructuring Agreement.

         4. Conversion.

                  (a) Subject to and upon compliance hereinbelow, the entire
outstanding principal amount of this Note, or any portion thereof, is
convertible into shares of common stock of the Borrower (the "Common Stock") at
the option of the Lender at any time. On conversion of the entire outstanding
principal amount of this Note, or any portion thereof, any interest that is past
due on the principal amount of this Note that is being converted shall be paid
in U.S. currency.

<PAGE>

                  (b) The total number of shares of Common Stock issuable upon
conversion shall be determined by dividing the principal amount of this Note
being converted by eighty percent (80%) of the closing bid price of the Common
Stock based on the average of the five (5) trading days immediately preceding
the date of conversion.

                  (c) Nothing in this Note shall grant, or shall be deemed to
constitute the incurrence, creation, assumption or sufferance by the Borrower
of, and the Lender shall not assert, any mortgage, pledge, lien, charge or other
encumbrance of any nature whatsoever on the Common Stock deliverable upon
conversion of this Note.

                  (d) To exercise the conversion privilege, the Lender shall
surrender this Note, duly endorsed or assigned to the Borrower or in blank, at
the office designated in writing by the Borrower, accompanied by written notice
to the Borrower.

                  (e) This Note shall be deemed to have been converted
immediately prior to the close of business on the day of surrender of this Note
for conversion in accordance with the foregoing provisions, and at such time the
rights of the Lender shall cease, and the person or persons, or entity or
entities, entitled to receive the Common Stock issuable upon conversion shall be
treated for all purposes as the record holder or holders of such Common Stock at
such time. As promptly as practicable on or after the day of conversion, the
Borrower shall issue and shall deliver at its principal office or other office
or agency which it may designate in writing to the Lender a certificate or
certificates for the number of shares of Common Stock issuable upon conversion
(which may include fractional shares, as applicable).

                  (f) If this Note is converted in part only, upon such
conversion the Borrower shall execute and deliver to the Lender, at the expense
of the Borrower, a new Note or Notes of authorized denominations in aggregate
principal amount equal to the unconverted portion of the principal amount of
this Note.

         Restrictive Covenant. Notwithstanding anything to the contrary in this
Note, in no event shall the Lender be entitled to exercise or convert any
portion of this Note in excess of that number of shares of Common Stock that,
upon giving effect to such exercise or conversion, would cause the aggregate
number of shares of Common Stock beneficially owned by the Lender and its
affiliates to exceed 4.99% of the outstanding shares of the Common Stock
following such exercise. For purposes of this covenant, beneficial ownership
shall be calculated in accordance with Section 13(d) of the Securities Exchange
Act of 1934, as amended.

         Prepayment.  There shall be no  prepayment  premium in the event the
Borrower  prepays any  principal  or accrued interest thereon.

         Evidence of Debt. The Borrower hereby requests, authorizes, and
empowers any officer or employee of the Lender who may be directed by the Lender
from time to time to make notations of advances, payments and resulting
outstanding balances on the Grid Schedule attached to this Note, and on
additional Grid Schedule sheets as may be used by the Lender from time to time,
and agrees to be bound by and to be liable to the Lender for repayment of the
outstanding principal balances as shown to be due and owing on such Grid
Schedule sheets from time to time, plus accrued interest thereon. The Grid
Schedule is incorporated herein and made a part of this Note. Notwithstanding
the foregoing, the Lender or the Borrower may establish, by extrinsic evidence,
that the outstanding balance of the Note is greater or less than the amount
shown on the Grid.

<PAGE>

         Default. Upon the occurrence of one or more Events of Default as
provided in the Loan Agreement, the entire disbursed and unpaid principal, and
the interest thereon shall, subject to any applicable cure periods, become
immediately due and payable without presentment or protest or other notice or
demand, all of which are expressly waived by the Borrower.

         No Waiver. The powers and remedies given hereby shall not be exclusive
of any other powers and remedies available to the Lender. No course of dealings
between the Borrower and the Lender and no delay on the part of the Lender in
exercising any rights with respect to any default shall operate as a waiver of
any rights of the Lender. Failure on the part of the Lender to exercise any
rights with respect to any default shall not operate as a waiver of any rights
with respect to any other default.

         Costs. The Borrower agrees to pay all costs and expenses incurred by
the Lender in enforcing this Revolving Credit Note, including, without
limitation, reasonable attorneys' fees and legal expenses.

         Amendment. This Revolving Credit Note may not be waived, changed,
modified or discharged orally, but only by agreement in writing signed by the
party against whom any enforcement of any waiver, change modification or
discharge is sought.

         THIS SECURED CONVERTIBLE REVOLVING CREDIT NOTE SHALL BE CONSTRUED IN
ACCORDANCE WITH AND GOVERNED BY THE LAWS OF THE STATE OF NEW YORK APPLICABLE TO
CONTRACTS MADE AND TO BE PERFORMED WHOLLY WITHIN THE STATE OF NEW YORK. BORROWER
HEREBY WAIVES THE RIGHT TO A JURY TRIAL AND CONSENTS TO JURISDICTION IN THE
FEDERAL OR STATE COURTS OF THE STATE OF NEW YORK WITH RESPECT TO THE ENFORCEMENT
OF THE TERMS HEREOF AND THE COLLECTION OF THE OBLIGATIONS HEREUNDER.

         IN WITNESS WHEREOF, the Borrower has duly executed this Secured
Convertible Revolving Credit Note the day and year first above written.

                                                     MARKLAND TECHNOLOGIES, INC.

                                                     By:  /s/ Larry Shatsoff
                                                          Larry Shatsoff
                                                          President

<PAGE>

                                  GRID SCHEDULE

                                                       Unpaid        Person
 Date of        Amount of      Principal   Interest    Principal      Making
Transaction      Loan           Payments   Payments    Balance       Notation

6/4/02         4,163,300<PAGE>

                                                                    EXHIBIT 10.1

                              ATLAS MINING COMPANY

                       COMMON STOCK SUBSCRIPTION AGREEMENT

         This Atlas Mining Company Common Stock Subscription Agreement (the
"Agreement") is hereby submitted by ____________________________________________
(the "Purchaser") for acceptance by Atlas Mining Company, a Idaho corporation
(the "Company") as of , 2002.

     1. ISSUANCE AND SALE OF COMMON STOCK. Subject to the terms hereof, at the
closing as provided for hereunder, the Company will issue and sell to the
Purchaser and the Purchaser will buy from the Company the number of shares of
the Company's Common Stock indicated on the signature page below (the "Shares"),
at a purchase price of $.25 per share.

     2.  CLOSING; DELIVERY.

         2.1 CLOSING. The closing (the "Closing") of the purchase and sale of
the Shares to the Purchaser hereunder shall be held at the offices of the
Company, located at 1221 West Yellowstone Avenue, Osburn, Idaho, 83849, at the
time and date upon which the Company accepts and signs this Agreement. The
Company may issue and sell additional shares of its Common Stock at additional
closings related to the Offering registered on Form SB-2 (SEC File No:
333-72830) at a purchase price of not less than $.25 per share, up to the
aggregate maximum of 6,000,000 shares. Notwithstanding anything to the contrary
in this Section 2.1, unless otherwise extended by the Company, no such Closing
or closings for the sale and issuance by the Company of shares of its Common
Stock shall occur on the ninetieth (90) day following the effectiveness of the
Company's Registration Statement SB-2.

         2.2 DELIVERY. At the Closing of the sale of the Shares to the
Purchaser, the Purchaser shall deliver to the Company cash, a check or wire
transfer payable to the Company, or any other consideration acceptable to the
Company, at the Company's sole discretion, for the appropriate aggregate
purchase price of the Shares. Upon receipt of the Purchaser's payment and the
acceptance by the Company of this Agreement from the Purchaser, the Company will
prepare a stock certificate representing the Shares purchased by the Purchaser
and promptly transmit such stock certificate to the Purchaser at the address
specified below.

     3. THE COMPANY'S REPRESENTATIONS AND WARRANTIES. The Company represents and
warrants to the Purchaser as follows:

         3.1 ORGANIZATION AND STANDING. The Company is a corporation duly
organized, validly existing and in good standing under the laws of the State of
Idaho and has all requisite corporate power and authority to carry on its
businesses as now conducted and as proposed to be conducted. The Company is
qualified or licensed to do business as a foreign corporation in all
jurisdictions where such qualification or licensing is required, except where
the failure to so qualify would not have a material adverse effect upon the
Company.

         3.2 CORPORATE POWER. The Company has now, or will have at the date of
each of the respective Closings, all requisite corporate power necessary for the
authorization, execution and delivery of this Agreement and to sell and issue
the Shares, and to carry out and perform all of its obligations hereunder.

<PAGE>

         3.3 AUTHORIZATION. This Agreement, including the obligation to issue
the Shares to be issued hereunder, when executed and delivered by the Company,
will constitute a valid and legally binding obligation of the Company,
enforceable in accordance with its terms, subject to laws of general application
relating to bankruptcy, insolvency and the relief of debtors and rules of law
governing specific performance, injunctive relief or other equitable remedies.
The Company has duly authorized the execution, delivery and performance of this
Agreement, including the issuance of the Shares by the Company.

         3.4 COMPLIANCE WITH OTHER INSTRUMENTS, NONE BURDENSOME, ETC. The
Company is not in violation of any term of its Certificate of Incorporation or
Bylaws, as amended, or any mortgage, indenture, contract, agreement, instrument,
judgment, decree or order by which the Company is bound or to which its
properties are subject or, to its knowledge any statute, rule or regulation
applicable to the Company which would materially and adversely affect the
business, assets, liabilities, financial condition, operations or prospects of
the Company. The execution, delivery and performance of and compliance with this
Agreement and the transactions contemplated hereby will not result in any such
violation and will not be in conflict with or constitute a default under any of
the foregoing and will not result in the creation of any mortgage, pledge, lien,
encumbrance or charge upon any of the properties or assets of the Company
pursuant to any of the foregoing.

         3.5 VALID ISSUANCE. The Shares, when issued in compliance with the
provisions of this Agreement, will be validly issued, fully paid and
nonassessable and will be free of any liens or encumbrances created by or
imposed upon the holders thereof through action of the Company except as set
forth in this Agreement. Subject to the accuracy of each Purchaser's
representations in Section 4 hereof, the Shares will be issued in compliance
with all applicable federal and state securities laws.

         3.6 FREELY TRADABLE. All shares issued pursuant to this Subscription
Agreement have been registered pursuant to the Securities Act of 1933, as
amended, on Form SB-2 (SEC File No: 333-72380)(the "Registration Statement").
This Registration Statement will be or has become effective as of the date of
the execution of this Agreement and no stop order shall have been issued
regarding the shares issued. Accordingly, the shares subscribed to and issued
pursuant to this Agreement are freely tradable and unrestricted.

     4. REPRESENTATIONS, WARRANTIES OF THE PURCHASER. The Purchaser represents
and warrants to the Company with respect to this purchase as follows:

         4.1 PROSPECTUS. The Purchaser has received a copy of this Prospectus
registered on Form SB-2 (SEC File No: 333-72380).

         4.2 EFFECTIVENESS. The Purchaser has not received any soliciting
materials regarding the shares subscribed to herein aside from the Prospectus
discussed in Section 4.1 of this Agreement. The Purchaser has not tendered this
Agreement prior to effectiveness of the Registration Statement and understands
that no shares will be issued prior to the date of effectiveness.

     5. MISCELLANEOUS.

         5.1 GOVERNING LAW. This Agreement shall be governed in all respects by
the laws of the State of California without regard to the conflict of laws
provisions. The parties hereto agree to submit to the exclusive jurisdiction of
the federal and state courts of the State of California with respect to the
interpretation of this Agreement or for the purposes of any action arising out
of or relating to this Agreement.

<PAGE>

         5.2 SURVIVAL. The representations, warranties, covenants and agreements
made herein shall survive the Closing of the transactions contemplated hereby.
All statements as to factual matters contained in any certificate or other
instrument delivered by or on behalf of the Company pursuant hereto or in
connection with any of the transactions contemplated hereby shall be deemed to
be representations and warranties of the Company hereunder solely as of the date
of such certificate or instrument.

         5.3 ENTIRE AGREEMENT; AMENDMENT. This Agreement, including any
agreements contemplated hereunder, constitutes the full and entire understanding
and agreement between the parties with regard to the subject matter hereof, and
no party shall be liable or bound to any other party in any manner by any
warranties, representations or covenants except as specifically set forth herein
or therein. Except as expressly provided herein, neither this Agreement nor any
term hereof may be amended, waived, discharged or terminated other than by a
written instrument signed by the party against whom enforcement of any such
amendment, waiver, discharge or termination is sought.

         5.4 NOTICES, ETC. All notices and other communications required or
permitted hereunder shall be in writing and shall be mailed by registered or
certified mail, postage prepaid, or otherwise delivered by hand or by messenger,
addressed (a) if to a Purchaser, at such respective address as set forth in the
Schedule of Purchasers attached hereto as Attachment A or at other such address
as Purchaser shall have properly furnished in writing to the Company attention
of the President or (b) if to the Company, at Atlas Mining Company, Inc. 630
East Mullan Avenue, Osburn, Idaho, 83849, Attn: Mr. Bill Jacobson or at other
such address as the Company shall have properly furnished to the Purchasers in
writing. Such notices shall be deemed effective upon (i) personal delivery to
the party to be notified; (ii) upon the next business day if sent by confirmed
telex or facsimile; (iii) one business day after deposit with a nationally
recognized overnight carrier, specifying next day delivery; or (iv) five
business days after having been sent by registered or certified mail, return
receipt requested, postage prepaid.

         5.5 EXPENSES. The Company and each Purchaser shall bear its own
expenses incurred on its behalf with respect to this Agreement and the
transactions contemplated hereby.

         5.6 RULES OF CONSTRUCTION. The parties hereto agree that they have been
adequately represented by counsel during the negotiation and execution of this
Agreement and, therefore, waive the application of any law, regulation, holding
or rule of construction providing that ambiguities in an agreement or other
document will be construed against the party drafting such agreement or
document.

         5.7 SEVERABILITY. In the event that any provision of this Agreement or
the application thereof becomes or is declared by a court of competent
jurisdiction to be illegal, void or unenforceable, the remainder of this
Agreement will continue in full force and effect and the application of such
provision to other persons or circumstances will be interpreted so as to
reasonably affect the intent of the parties hereto. To the extent possible, the
parties further agree to replace such void or unenforceable provision of this
Agreement with a valid and enforceable provision that will achieve the economic,
business and other purposes of such void or unenforceable provision as closely
as possible.

         5.8 BROKER'S FEES. Each party hereto represents and warrants that no
agent, broker, investment banker, person or firm acting on behalf of or under
the authority of such party hereto is or will be entitled to any broker's or
finder's fee or any other commission directly or indirectly in connection with
the transactions contemplated herein. Each party hereto further agrees to
indemnify each other party for any claims, losses or expenses incurred by such
other party as a result of the representation of this section being untrue.

         5.9 COUNTERPARTS. This Agreement may be executed in counterparts, each
of which shall be enforceable against the parties actually executing such
counterparts, and all of which together shall constitute one instrument.

<PAGE>

                              ATLAS MINING COMPANY
                       COMMON STOCK SUBSCRIPTION AGREEMENT
                                 SIGNATURE PAGE

The undersigned hereby subscribes for the following number of Shares of the
Company's Common Stock pursuant to the terms and conditions contained in this
Stock Subscription Agreement at a purchase price of $.25 per share:

PURCHASER:

Number of Shares of
Common Stock:
                           --------------------------

Purchase Price per Share:  $.25

Total Purchase Price:      $
                           --------------------------

IF FOR AN INDIVIDUAL:                       IF FOR AN ENTITY:

                                            Entity Name:
                                                         -----------------------

By:                                         By:
    ---------------------------------           --------------------------------

Print Name:                                 Print Name:
            -------------------------                   ------------------------

                                            Title:
                                                   -----------------------------

===============

COMPANY:

AGREED AND ACCEPTED AS TO ________________________ SHARES EFFECTIVE AS OF ______
__________________________________.

Atlas Mining Company
a Idaho Corporation

By:
    ---------------------------------------
       Bill Jacobson, President

<PAGE>

                                  ATTACHMENT A
                                  ------------
                        Names and Addresses of Purchasers

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