1.   Because of sheer luck and several missteps at key moments by U.S. investigators, Hall has never been prosecuted for his espionage activities.

2.   All this espionage activity seems excessive.

3.   But she said Trofimoff was seeking payment for espionage activities when he was arrested.

4.   China Resources has occasionally served as cover for espionage activities by the Chinese, some intelligence analysts said.

5.   Dr. Lee assisted the FBI in its investigation of suspected espionage activity at the Lawrence Livermore National Laboratory.

6.   He never seemed to apologize and seemed to take a secret pride in his espionage activities..

7.   Iranian Kurds also protested outside the Iranian Embassy in Bonn, which is widely viewed as a center for espionage activities in Europe.

8.   It is true that both as a headquarters for American espionage activities and as a source of hard currency, Switzerland had served the Allies well.

9.   Its operations directorate, the center of espionage activity and covert operations, has engaged in a self-destructive binge of misbehavior.

10.   Soviet and U.S. intelligence archives have yielded new information in recent years about Soviet espionage activities in the United States, but much of it is opaque and ambiguous.