**Exhibit 99.1** Thefollowing disclosure was provided in the Annual Report on Form 10-Kfor the year ended December 31, 2005 (filed with the Securities andExchange Commission on November 22, 2006). **ITEM 3.****LEGAL    PROCEEDINGS** ***Overview***     We currently are a party to a number of disputes that involve or    may involve litigation or other legal or regulatory proceedings.    Generally, there are three types of legal proceedings to which    we have been made a party:      •        Claims and investigations arising from our continuing inability    to timely file periodic reports under the Exchange Act, and the    restatement of our financial statements for certain prior    periods to correct accounting errors and departures from    generally accepted accounting principles for those years    (“SEC Reporting Matters”);      •        Claims and investigations being conducted by agencies or    officers of the U.S. Federal government and arising in    connection with our provision of services under contracts with    agencies of the U.S. Federal government (“Government    Contracting Matters”); and      •        Claims made in the ordinary course of business by clients    seeking damages for alleged breaches of contract or failure of    performance and by current or former employees seeking damages    for alleged acts of wrongful termination or discrimination    (“Other Matters”).     Additional information regarding significant matters of this    nature is incorporated by reference herein from Note 11,    “Commitments and Contingencies,” of the Notes to    Consolidated Financial Statements.     Our 2005 Credit Facility contains limits on the amounts of civil    litigation payments that we are permitted to pay, as follows: up    to $75 million during the    24-month    period ending July 18, 2007, and up to $15 million    during any twelve consecutive months thereafter, in each case,    net of any insurance proceeds. Failure to abide by these limits    could result in a default under the credit facility for which,    after opportunity to cure the default, outstanding indebtedness    under the 2005 Credit Facility could be accelerated.     We currently maintain insurance in types and amounts customary    in our industry, including coverage for professional liability,    general liability and management and director liability. Based    on management’s current assessment, we believe that the    Company’s financial statements include adequate provision    for estimated losses that are likely to be incurred with regard    to such matters. ***SEC    Reporting Matters*** *2005 Class Action Suits.* In and after April 2005,    various separate complaints were filed in the U.S. District    Court for the Eastern District of Virginia, alleging that the    Company and certain of its current and former officers and    directors violated Section 10(b) of the Exchange Act,    Rule 10b-5    promulgated thereunder and Section 20(a) of the Exchange    Act by, among other things, making materially misleading    statements between August 14, 2003 and April 20, 2005    with respect to our financial results in our SEC filings and    press releases. On January 17, 2006, the court certified a    class, appointed class counsel and appointed a class    representative. The plaintiffs filed an amended complaint on    March 10, 2006 and the defendants, including the Company,    subsequently filed a motion to dismiss that complaint, which was    fully