ASIS, was the subject of a newspaper exposé years before its existence was officially acknowledged. Israel is widely acknowledged to possess nuclear weapons. This can be considered an open secret, because the Israeli government has never explicitly stated whether or not it possesses a nuclear stockpile, officially maintaining a policy of deliberate ambiguity. Post Office Tower was completed in 1964 and information about it was designated an official secret, due to its importance to the national communications network. In 1978, the journalist Duncan Campbell was tried for collecting information about secret locations, and during the trial the judge ordered that the sites could not be identified by name; the Post Office Tower could only be referred to as 'Location 23'. It was officially revealed by Kate Hoey under parliamentary privilege in 1993, despite being a tall structure in the middle of central London. It is often said that the tower did not appear on Ordnance Survey maps, despite being a tall structure in the middle of central London that was open to the public for about 15 years. However, this is incorrect; the 1:25,000 (published 1971) and 1:10,000 (published 1981) Ordnance Survey maps show the tower. It is also shown in the London A–Z street atlas from 1984. Entertainment Kayfabe, or the presentation of professional wrestling as "real" or unscripted, is an open secret, kept displayed as legitimate within the confines of wrestling programs but openly acknowledged as predetermined by wrestlers and promoters in the context of interviews for decades. In television, the primary real-world identity of The Stig, a costumed and masked television test-driver used by BBC Television for Top Gear, was an open secret until the unofficial embargo was broken by a newspaper in 2009. See also He never married Pronoun game Secret de Polichinelle References Secrecy LGBT linguistics