1.   Any new rules or restraints would be aimed partly at preventing terrorists from obtaining germs that could be used in an attack.

2.   In addition, matching bags to passengers does not prevent suicidal terrorists from boarding a plane.

3.   In fact, systems that could prevent terrorists from crashing a plane into a building, or even crashing the plane at all, would require no fundamental breakthroughs.

4.   In fact, the barricades have been set up not only to prevent terrorists from getting in but also to prevent the Stock Exchange from getting out.

5.   In the rejuvenated effort to prevent a terrorist from striking a nuclear blow, this is where most of the attention and money are focused.

6.   Russian Prime Minister Vladimir Putin said the measures are needed to stop arms smuggling and to prevent Islamic terrorists from flocking to the north Caucasus region.

7.   The agency increased security measures to prevent terrorists from slipping into the United States by masquerading as refugees.

8.   The commission also proposed matching bags with passengers on all flights to prevent terrorists from smuggling bombs aboard planes.

9.   The goal is to prevent foreign terrorists from posing as students to get visas, but critics question whether monitoring is fair or effective.

10.   The two countries have agreed to review visa policies jointly and to share information about people on watch lists, to prevent terrorists from obtaining visas.