On this day in 1973, the existence tape recordings from President Richard M. Nixon's secret bugging of his own offices was revealed. The Watergate hearings were the hot news of the day, and the old feeder was watching the whole mess on TV.
Lawyer Fred Thompson, now a possible candidate for the Presidency himself, asked Nixon flunky Alexander Butterfield if he knew about the bugging and the incriminating tapes. With Butterfield's answer, Nixon's fate was sealed. Read more here.
Today is also the anniversary of the first atomic bomb explosion. For some reason, the test was code named Trinity.