Kilgore Trout
Misanthropic Humanist
We can't know until a poll is taken. It all depends on the situation people find themselves under too. Muslims feel like they are under constant attack from the West. I'd be willing to bet that immediately after a terrorist attack, people in the US or UK or other western countries could well say yes to violent actions more drastic than they would in peace times.
I don't remember a single instance of a US citizen performing a suicide bombing - even right after 9/11.