Though a string of spy cases in recent years has involved naval men, embassy guards and intelligence analysts, U.S. officials could take comfort in the belief that none had implicated an American diplomat -- until now. The State Department last week confirmed that the FBI is probing whether Felix S. Bloch, a 30-year Foreign Service veteran and the No. 2 man at the U.S. embassy in Austria from 1981 to 1987, has been working for the KGB.
State Department spokesmen say the FBI is investigating unspecified "illegal activities" to determine "the extent of the compromise of security that has occurred." Bloch,...