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The Bad Aibling Station (abbreviated BAS, also known as Field station 81, which had an official designation as the 18th United States Army Security Agency Field Station, or as the pseudonym Hortensie III) is a satellite tracking station operated by the German intelligence agency Bundesnachrichtendienst (BND) in Bad Aibling, Bavaria.〔(Center for Cryptologic History: "Bad Aibling Station - A Legacy of Excellence" )〕 Created by the Western Allies in 1947, it was run by the U.S. National Security Agency (NSA) until the early 2000s, when operations were gradually transferred to the BND due to public outrage over U.S. surveillance operations in Germany. As part of the global surveillance network ECHELON, Bad Aibling is the largest listening post outside Britain and the USA. == History == In 1936 a military airfield was established by the German National Socialist government on the site of a sport airfield in Bad Aibling-Mietraching.〔(History of the "Fliegerhorst" Mietraching at www.mietraching.de (in German) )〕 After the Second World War, troops of the United States Army seized the military airport ("Fliegerhorst" and flight training base) that had evolved from the airfield. Initially, it was used by the occupying Americans as a camp for prisoners of war, a displaced persons camp, and as an orphanage under supervision of the UNRRA. Günter Grass and Joseph Ratzinger, later Pope Benedict XVI, are alleged to have met there as prisoners.〔(open book: Ratzinger and Grass )〕 In 1952, the area was taken over by the US Army. Since a four-power agreement enacted Austria's neutrality in 1955 US listening devices that were situated there had to be abandoned. They were relocated to Bad Aibling and during Cold War the field station 81 was converted by the United States Army Security Agency ("ASA") to a central communications monitoring station for American intelligence.〔OVB online: (B&O-Gelände - einst und heute ). Retrieved on September 16th, 2015〕 In 1971 the National Security Agency (NSA) and the United States Department of Defense took over command from the U.S. Army. Simultaneously, the Army Security Agency transferred most of its activities in West Germany from its field stations located at Rothwesten, Bad Aibling and Herzogenaurach to Augsburg. In 1994, the NSA transferred command of its Bad Aibling base to INSCOM, one of the Central Security Services of USA.〔(RAVEN: INSCOM in Bad Aibling (in German) )〕 After the end of the Cold War, on several occasions including investigations of the European Parliament that censured industrial espionage by American secret services, the Americans intended to close the Bad Aibling Station.〔(Yorkshire CND: Bad Aibling Station to close )〕 The September 11, 2001 attacks delayed these plans. In the vicinity in Bad Aibling, a base of the Bundesnachrichtendienst (BND) has always been in existence within the area of former barracks of the Bundeswehr. The restructuring of the American intelligence community after the September 11, 2001 caused the closure of Bad Aibling Station on September 30, 2004. The base was returned to the Federal Republic of Germany. Information uncovered by ''Der Spiegel'' in 2013 from the Edward Snowden leaks indicated that the NSA continues to have a presence at Bad Aibling, supported by the BND. The NSA functions are housed in a metal-clad building known colloquially as the "Tin Can". 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Bad Aibling Station」の詳細全文を読む スポンサード リンク
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