11.   A wave of anthrax hoaxes has burdened the FBI, which has struggled to keep pace with the growing threat.

12.   Administration officials say the president was concerned about the growing threat and frustrated by the halfhearted efforts to thwart al-Qaida.

13.   All this gloom came against a backdrop of America becoming increasingly beset by a growing threat of anthrax attacks from terrorists.

14.   But a U.N. spokesman said Monday that highway robbery and looting were a growing threat to aid deliveries.

15.   But even as experts said that a growing terrorist threat required more powers and fewer constraints on government agencies, the suspicion of government itself was on the rise.

16.   But he said policy-makers decided last month that the global turmoil posed a growing threat to prosperity.

17.   But some parents and private-school leaders are sensing a growing threat to the tradition.

18.   Castro needed to find a way to shut down this growing threat.

19.   Clinton this week convened the top financial policy makers of the leading economic powers to sound the alarm about the growing threat of a global recession.

20.   Cohen said the United States was forced to act because of the growing threat from nations like North Korea, which are developing new offensive missiles.