Trust, but verify as a signature phrase by Reagan, who subsequently used it frequently when discussing U.S. relations with the Soviet Union. Using proverbs that the Russians could relate to may have helped relations between the two leaders. After Reagan used the phrase to emphasize "the extensive verification procedures that would enable both sides to monitor compliance with the treaty", at the signing of the INF Treaty, on 8 December 1987, his counterpart General Secretary Mikhail Gorbachev responded, "You repeat that at every meeting," to which Reagan answered, "I like it." While Reagan quoted Russian proverbs, Mr. Gorbachev quoted Ralph Waldo Emerson, who
US signals intelligence in the Cold War package would fly aboard a photoreconnaissance satellite, Discoverer-13, in August 1960. Translated from the Russian, it was equipped with "Scotop equipment was intended to record the signals of Soviet radars which were tracking the flight of American space objects." NSA in the post-World War II period had broken messages used by the Soviet armed forces, police and industry, and was building a remarkably complete picture of the Soviet national security posture. It was a situation that compared favorably to the successes of World War II. Then, during 1948, in rapid succession, every one of these cipher systems went dark, as