1.   Security has tightened since the bombing, but the royal family has tried to mend fences.

2.   As anti-Americanism has flared in the camps, security has tightened for Western relief workers.

3.   Metzler said ITS screeners are doing more physical checks of people and baggage, and, as a result, security has tightened.

4.   National security tightened another notch Sunday as bombs fell on Afghanistan, stoking fears of a terrorist reprisals at home and abroad.

5.   No exceptions Airport security has tightened dramatically since the terrorist attacks.

6.   Security tightened around the president.

7.   Since the terrorist attacks, security has tightened at general aviation terminals housed at airports that also serve airlines.

8.   And security tightens.

9.   At night, security tightens visibly, with soldiers guarding checkpoints and the entrances to the tunnels dug into the granite.

10.   But security has not tightened massively over the past week, and soldiers and foreign officials have said they feel comfortable.