Task: sc_casesource

What follows is an opinion from the Supreme Court of the United States. Your task is to identify the court whose decision the Supreme Court reviewed. If the case arose under the Supreme Court's original jurisdiction, note the source as "United States Supreme Court". If the case arose in a state court, note the source as "State Supreme Court", "State Appellate Court", or "State Trial Court". Do not code the name of the state. 

Mr. Justice Douglas
delivered the opinion of the Court.
Respondent, at about 1:30 p. m. on Thursday, March 28, 1968, mailed two 12-pound packages at the post office in Mt. Vernon, Washington, a town some 60 miles from the Canadian border. One package was addressed to a post office box in Van Nuys, California, and the other to a post office box in Nashville, Tennessee. Respondent declared they contained coins. Each package was to be sent airmail registered and each was insured for $10,000, a type of mailing that the parties agree was first class, making them not subject to discretionary inspection.
When the postal clerk told a policeman who happened to be present that he was suspicious of the packages, the policeman at once noticed that the return address on the packages was a vacant housing area of a nearby junior college, and that the license plates of respondent’s car were British Columbia. The policeman called the Canadian police, who called customs in Seattle. At 3 o’clock that afternoon customs called Van Nuys and learned that the addressee of one package was under investigation in Van Nuys for trafficking in illegal coins. Due to the time differential, Seattle customs was unable to reach Nashville until the following morning, March 29, when Seattle was advised that the second addressee was also being investigated for the same crime. A customs official in Seattle thereupon filed an affidavit for a search warrant for both packages with a United States commissioner, who issued the search warrant at 4 p. m., and it was executed in Mt. Vernon at 6:30 p. m., 2% hours later. Thereupon the packages were opened, inspected, resealed, and promptly sent on their way.
Other evidence showed that respondent had brought the two packages in from Canada without declaring them. He was tried for illegally importing gold coins in violation of 18 U. S. C. § 545 and found guilty and sentenced and fined. On appeal, the Court of Appeals reversed, holding that the coins were improperly admitted in evidence because a timely warrant had not been obtained. 414 F. 2d 758. The case is here on a petition for a writ of certiorari, 396 U. S. 885. We reverse.
It has long been held that first-class mail such as letters and sealed packages subject to letter postage— as distinguished from newspapers, magazines, pamphlets, and other printed matter — is free from inspection by-postal authorities, except in the manner provided by the Fourth Amendment. As stated in Ex parte Jackson, 96 U. S. 727, 733, decided in 1878:
“Letters and sealed packages of this kind in the mail are as fully guarded from examination and inspection, except as to their outward form and weight, as if they were retained by the parties forwarding them in their own domiciles. The constitutional guaranty of the right of the people to be secure in their papers against unreasonable searches and seizures extends to their papers, thus closed against inspection, wherever they may be. Whilst in the mail, they can only be opened and examined under like warrant, issued upon similar oath or affirmation, particularly describing the thing to be seized, as is required when papers are subjected to search in one’s own household. No law of Congress can place in the hands of officials connected with the postal service any authority to invade the secrecy of letters and such sealed packages in the mail; and all regulations adopted as to mail matter of this kind must be in subordination to the great principle embodied in the fourth amendment of the Constitution.”
The course of events since 1878 has underlined the relevance and importance of the Post Office to our constitutional rights. Mr. Justice Holmes in Milwaukee Pub. Co. v. Burleson, 255 U. S. 407, 437 (dissenting opinion), said that “the use of the mails is almost as much a part of free speech as the right to use our tongues.” We have emphasized over and over again that while Congress may classify the mail and fix the charges for its carriage, it may not set up regimes of censorship over it, Hannegan v. Esquire, Inc., 327 U. S. 146, or encumber its flow by setting “administrative officials astride the flow of mail to inspect it, appraise it, write the addressee about it, and await a response before dispatching the mail” to him. Lamont v. Postmaster General, 381 U. S. 301, 306. Yet even first-class mail is not beyond the reach of all inspection; and the sole question here is whether the conditions for its detention and inspection had been satisfied. We think they had been.
The nature and weight of the packages, the fictitious return address, and the British Columbia license plates of respondent who made the mailings in this border town certainly justified detention, without a warrant, while an investigation was made. The “protective search for weapons” of a suspect which the Court approved in Terry v. Ohio, 392 U. S. 1, 20-27, even when probable cause for an arrest did not exist, went further than we need go here. The only thing done here on the basis of suspicion was detention of the packages. There was at that point no possible invasion of the right “to be secure” in the “persons, houses, papers, and effects” protected by the Fourth Amendment against “unreasonable searches and seizures.” Theoretically — and it is theory only that respondent has on his side — detention of mail could at some point become an unreasonable seizure of “papers” or “effects” within the meaning of the Fourth Amendment. Detention for 1% hours — from 1:30 p. m. to 3 p. m. — for an investigation certainly was not excessive; and at the end of that time probable cause existed for believing that the California package was part of an illicit project. A warrant could have been obtained that day for the one package; yet the mystery of the other package remained unsolved and federal officials in Tennessee could not be reached because of the time differential. The next morning they were reached and it was learned that the second package was also probably part of an illicit project. By 4 p. m. — or 26% hours after the mailing in Mt. Vernon — a search warrant was obtained in Seattle and at 6:30 p. m., or 29 hours after the mailing, the search warrant reached Mt. Vernon, a speedy transmission considering the rush-hour time of day and the congested highway.
No interest protected by the Fourth Amendment was invaded by forwarding the packages the following day rather than the day when they were deposited. The significant Fourth Amendment interest was in the privacy of this first-class mail; and that privacy was not disturbed or invaded until the approval of the magistrate was obtained.
The rule of our decisions certainly is not that first-class mail can be detained 29 hours after mailing in order to obtain the search warrant needed for its inspection. We only hold that on the facts of this case— the nature of the mailings, their suspicious character, the fact that there were two packages going to separate destinations, the unavoidable delay in contacting the more distant of the two destinations, the distance between Mt. Vernon and Seattle — a 29-hour delay between the mailings and the service of the warrant cannot be said to be “unreasonable” within the meaning of the Fourth Amendment. Detention for this limited time was, indeed, the prudent act rather than letting the packages enter the mails and then, in case the initial suspicions were confirmed, trying to locate them en route and enlisting the help of distant federal officials in serving the warrant.
Reversed.
39 CFR §131.2 describes “first class” mail as “matter closed against postal inspection,” which follows the definition in 39 U. S. C. §4251 (a).
The question as to the right of the addressee to stop deliveries is a separate and distinct one. See No. 399, Rowan v. Post Office, post, p. 728.

Question: What is the court whose decision the Supreme Court reviewed?
年. U.S. Court of Customs and Patent Appeals
数. U.S. Court of International Trade
日. U.S. Court of Claims, Court of Federal Claims
的. U.S. Court of Military Appeals, renamed as Court of Appeals for the Armed Forces
月. U.S. Court of Military Review
用. U.S. Court of Veterans Appeals
成. U.S. Customs Court
名. U.S. Court of Appeals, Federal Circuit
时. U.S. Tax Court
件. Temporary Emergency U.S. Court of Appeals
一. U.S. Court for China
请. U.S. Consular Courts
中. U.S. Commerce Court
据. Territorial Supreme Court
码. Territorial Appellate Court
不. Territorial Trial Court
新. Emergency Court of Appeals
文. Supreme Court of the District of Columbia
下. Bankruptcy Court
分. U.S. Court of Appeals, First Circuit
入. U.S. Court of Appeals, Second Circuit
人. U.S. Court of Appeals, Third Circuit
功. U.S. Court of Appeals, Fourth Circuit
上. U.S. Court of Appeals, Fifth Circuit
户. U.S. Court of Appeals, Sixth Circuit
为. U.S. Court of Appeals, Seventh Circuit
间. U.S. Court of Appeals, Eighth Circuit
号. U.S. Court of Appeals, Ninth Circuit
取. U.S. Court of Appeals, Tenth Circuit
回. U.S. Court of Appeals, Eleventh Circuit
在. U.S. Court of Appeals, District of Columbia Circuit (includes the Court of Appeals for the District of Columbia but not the District of Columbia Court of Appeals, which has local jurisdiction)
页. Alabama Middle U.S. District Court
字. Alabama Northern U.S. District Court
有. Alabama Southern U.S. District Court
个. Alaska U.S. District Court
作. Arizona U.S. District Court
示. Arkansas Eastern U.S. District Court
出. Arkansas Western U.S. District Court
是. California Central U.S. District Court
失. California Eastern U.S. District Court
表. California Northern U.S. District Court
除. California Southern U.S. District Court
加. Colorado U.S. District Court
败. Connecticut U.S. District Court
生. Delaware U.S. District Court
信. District Of Columbia U.S. District Court
类. Florida Middle U.S. District Court
置. Florida Northern U.S. District Court
理. Florida Southern U.S. District Court
本. Georgia Middle U.S. District Court
息. Georgia Northern U.S. District Court
行. Georgia Southern U.S. District Court
定. Guam U.S. District Court
改. Hawaii U.S. District Court
市. Idaho U.S. District Court
期. Illinois Central U.S. District Court
以. Illinois Northern U.S. District Court
修. Illinois Southern U.S. District Court
元. Indiana Northern U.S. District Court
方. Indiana Southern U.S. District Court
录. Iowa Northern U.S. District Court
区. Iowa Southern U.S. District Court
单. Kansas U.S. District Court
位. Kentucky Eastern U.S. District Court
型. Kentucky Western U.S. District Court
法. Louisiana Eastern U.S. District Court
县. Louisiana Middle U.S. District Court
存. Louisiana Western U.S. District Court
品. Maine U.S. District Court
前. Maryland U.S. District Court
称. Massachusetts U.S. District Court
注. Michigan Eastern U.S. District Court
值. Michigan Western U.S. District Court
输. Minnesota U.S. District Court
建. Mississippi Northern U.S. District Court
能. Mississippi Southern U.S. District Court
大. Missouri Eastern U.S. District Court
例. Missouri Western U.S. District Court
度. Montana U.S. District Court
始. Nebraska U.S. District Court
到. Nevada U.S. District Court
面. New Hampshire U.S. District Court
载. New Jersey U.S. District Court
点. New Mexico U.S. District Court
密. New York Eastern U.S. District Court
动. New York Northern U.S. District Court
果. New York Southern U.S. District Court
图. New York Western U.S. District Court
提. North Carolina Eastern U.S. District Court
发. North Carolina Middle U.S. District Court
式. North Carolina Western U.S. District Court
国. North Dakota U.S. District Court
登. Northern Mariana Islands U.S. District Court
错. Ohio Northern U.S. District Court
者. Ohio Southern U.S. District Court
认. Oklahoma Eastern U.S. District Court
误. Oklahoma Northern U.S. District Court
接. Oklahoma Western U.S. District Court
关. Oregon U.S. District Court
重. Pennsylvania Eastern U.S. District Court
第. Pennsylvania Middle U.S. District Court
地. Pennsylvania Western U.S. District Court
如. Puerto Rico U.S. District Court
设. Rhode Island U.S. District Court
目. South Carolina U.S. District Court
开. South Dakota U.S. District Court
事. Tennessee Eastern U.S. District Court
可. Tennessee Middle U.S. District Court
要. Tennessee Western U.S. District Court
代. Texas Eastern U.S. District Court
小. Texas Northern U.S. District Court
选. Texas Southern U.S. District Court
标. Texas Western U.S. District Court
明. Utah U.S. District Court
编. Vermont U.S. District Court
求. Virgin Islands U.S. District Court
列. Virginia Eastern U.S. District Court
网. Virginia Western U.S. District Court
万. Washington Eastern U.S. District Court
最. Washington Western U.S. District Court
器. West Virginia Northern U.S. District Court
所. West Virginia Southern U.S. District Court
内. Wisconsin Eastern U.S. District Court
体. Wisconsin Western U.S. District Court
通. Wyoming U.S. District Court
务. Louisiana U.S. District Court
此. Washington U.S. District Court
商. West Virginia U.S. District Court
序. Illinois Eastern U.S. District Court
化. South Carolina Eastern U.S. District Court
消. South Carolina Western U.S. District Court
否. Alabama U.S. District Court
保. U.S. District Court for the Canal Zone
使. Georgia U.S. District Court
次. Illinois U.S. District Court
机. Indiana U.S. District Court
对. Iowa U.S. District Court
量. Michigan U.S. District Court
查. Mississippi U.S. District Court
部. Missouri U.S. District Court
性. New Jersey Eastern U.S. District Court (East Jersey U.S. District Court)
和. New Jersey Western U.S. District Court (West Jersey U.S. District Court)
更. New York U.S. District Court
后. North Carolina U.S. District Court
证. Ohio U.S. District Court
题. Pennsylvania U.S. District Court
确. Tennessee U.S. District Court
格. Texas U.S. District Court
了. Virginia U.S. District Court
于. Norfolk U.S. District Court
金. Wisconsin U.S. District Court
公. Kentucky U.S. Distrcrict Court
午. New Jersey U.S. District Court
円. California U.S. District Court
片. Florida U.S. District Court
空. Arkansas U.S. District Court
态. District of Orleans U.S. District Court
管. State Supreme Court
主. State Appellate Court
天. State Trial Court
自. Eastern Circuit (of the United States)
我. Middle Circuit (of the United States)
全. Southern Circuit (of the United States)
今. Alabama U.S. Circuit Court for (all) District(s) of Alabama
来. Arkansas U.S. Circuit Court for (all) District(s) of Arkansas
正. California U.S. Circuit for (all) District(s) of California
说. Connecticut U.S. Circuit for the District of Connecticut
意. Delaware U.S. Circuit for the District of Delaware
送. Florida U.S. Circuit for (all) District(s) of Florida
容. Georgia U.S. Circuit for (all) District(s) of Georgia
已. Illinois U.S. Circuit for (all) District(s) of Illinois
结. Indiana U.S. Circuit for (all) District(s) of Indiana
会. Iowa U.S. Circuit for (all) District(s) of Iowa
段. Kansas U.S. Circuit for the District of Kansas
计. Kentucky U.S. Circuit for (all) District(s) of Kentucky
源. Louisiana U.S. Circuit for (all) District(s) of Louisiana
色. Maine U.S. Circuit for the District of Maine
時. Maryland U.S. Circuit for the District of Maryland
交. Massachusetts U.S. Circuit for the District of Massachusetts
系. Michigan U.S. Circuit for (all) District(s) of Michigan
过. Minnesota U.S. Circuit for the District of Minnesota
电. Mississippi U.S. Circuit for (all) District(s) of Mississippi
询. Missouri U.S. Circuit for (all) District(s) of Missouri
符. Nevada U.S. Circuit for the District of Nevada
未. New Hampshire U.S. Circuit for the District of New Hampshire
程. New Jersey U.S. Circuit for (all) District(s) of New Jersey
常. New York U.S. Circuit for (all) District(s) of New York
条. North Carolina U.S. Circuit for (all) District(s) of North Carolina
当. Ohio U.S. Circuit for (all) District(s) of Ohio
情. Oregon U.S. Circuit for the District of Oregon
口. Pennsylvania U.S. Circuit for (all) District(s) of Pennsylvania
合. Rhode Island U.S. Circuit for the District of Rhode Island
车. South Carolina U.S. Circuit for the District of South Carolina
实. Tennessee U.S. Circuit for (all) District(s) of Tennessee
组. Texas U.S. Circuit for (all) District(s) of Texas
版. Vermont U.S. Circuit for the District of Vermont
周. Virginia U.S. Circuit for (all) District(s) of Virginia
址. West Virginia U.S. Circuit for (all) District(s) of West Virginia
记. Wisconsin U.S. Circuit for (all) District(s) of Wisconsin
二. Wyoming U.S. Circuit for the District of Wyoming
同. Circuit Court of the District of Columbia
业. Nebraska U.S. Circuit for the District of Nebraska
权. Colorado U.S. Circuit for the District of Colorado
其. Washington U.S. Circuit for (all) District(s) of Washington
进. Idaho U.S. Circuit Court for (all) District(s) of Idaho
试. Montana U.S. Circuit Court for (all) District(s) of Montana
验. Utah U.S. Circuit Court for (all) District(s) of Utah
料. South Dakota U.S. Circuit Court for (all) District(s) of South Dakota
传. North Dakota U.S. Circuit Court for (all) District(s) of North Dakota
述. Oklahoma U.S. Circuit Court for (all) District(s) of Oklahoma
集. Court of Private Land Claims
Answer:

Answer: 号