A little research would be your friend. Billions of dollars blown and liberties lost and just some of the attacks during Bush’s term:
http://en.wikipedia.org/wiki/2002_Los_Angeles_Airport_shooting
http://en.wikipedia.org/wiki/Beltway_sniper_attacks
http://en.wikipedia.org/wiki/Mohammed_Reza_Taheri-azar
http://en.wikipedia.org/wiki/Seattle_Jewish_Federation_shooting
Sheesh. Why don’t you include a link to a story about Columbine?