1.   Fears of renewed terrorist attacks cast a cloud over the event .

2.   He was detained for questioning about the terrorist attacks.

3.   Terrorist attacks led to the rupture of relations between the two countries.

4.   The explosion had all the hallmarks of a terrorist attack.

5.   The explosion has all the hallmarks of a terrorist attack.

6.   The Institution has been the target of terrorist attack several times.

7.   The nightmare scenario would be a number of simultaneous terrorist attacks.

8.   The road blocks were a counter to terrorist attacks in that area.

9.   The terrorist attack, in which two innocent tourists were murdered, is the third outrage of its kind this year.

10.   The threat of terrorist attacks has prompted some elaborate security precautions.