11.   Both agreed to create a joint planning group that would consult on security matters and report regularly to Barak and Clinton.

12.   A NATO-Russia council was established to discuss peacekeeping, nuclear weapons, terrorism and other weighty security matters.

13.   But contacts stalled after Bush took a more hawkish stand on regional security matters than former President Bill Clinton.

14.   But at a time when Bush is leading a global coalition in a war on terror, security matters formed the backbone of his speech.

15.   But he is well-known for keeping his own counsel on security matters.

16.   But Massport officials insist that his memo proves that the agency was thinking ahead and taking security matters seriously.

17.   But it was not clear if Tenet had traveled to Russia to discuss the accident or another security matter.

18.   But rules more basic to the operation of the jails are to be reviewed, including staffing levels and other security matters.

19.   But the court rarely rules against the army in security matters, and the generals say they first want information on Mr. Saadon.

20.   But the larger issue is the obligation of the FBI to keep the president and his senior advisers informed about important national security matters.