11.   Analysts said the administration may be responding to public opinion surveys that show that many Americans believe that federal officials could have done more to prevent the attacks.

12.   And rather than threaten Arafat, he credited the Palestinian administration for working with Israeli security forces to prevent other attacks.

13.   And rather than threaten Arafat, he credited the Palestinian administration for working alongside the Israeli security forces to prevent other attacks.

14.   And the added vigilance of recent months may well have prevented other attacks.

15.   Another inevitable consideration is the general difficulty of preventing an attack if the attackers are willing, indeed determined, to sacrifice their lives.

16.   Another way to prevent attacks is to stop the terrorists ahead of time.

17.   As a precaution in working with the bird flu virus, Dr. Subbarao and others take a drug, rimantidine, to prevent attacks of influenza.

18.   Arafat has arrested scores of Islamic activists in the Gaza Strip to prevent attacks by opponents of the peace process.

19.   At Justice, those not in the Ashcroft-Mueller axis view the tribunals as giving priority to punishment for past attacks rather than helping to prevent future attacks.

20.   Attorney General John Ashcroft has spent the past two days on Capitol Hill lobbying for the package, arguing that speedy passage is needed to prevent future attacks.