Yes, but many of them were arrested outside of Aghanistan and Irak (in the US for some of them). So they aren't the result of the war, but of the increased security measures and information gathering.

>Actually, some planned attacks were in fact prevented due to some of the changes put into place after 9-11.
>
>This list only covers 9-11 --> November 2007:
>http://www.heritage.org/research/HomelandDefense/bg2085.cfm
>
>Another interesting article:
>http://www.nationalterroralert.com/updates/2009/04/21/techniques-worked-may-have-prevented-los-angeles-terror-attack/
>And this harvard one:
>http://belfercenter.ksg.harvard.edu/publication/18249/preventing_terrorist_attacks.html