sentences:  It was not until 1994 that Aldrich Ames, a mole within the CIA, was caught.Another mole, Robert Hanssen, this time within the FBI, was caught only in 2001.During 1987, relations improved steadily, with U.S. military inspectors present at Soviet military manoeuvres, an agreement to establish centers on Reducing Nuclear Threat, and a first round of negotiations aimed at banning nuclear tests.