Tim McVeigh was an American. So was Benedict Arnold. The fact one is born an American does not confer dignity nor virtue upon them and their actions.
Terrible thing, that car bomb. But, she knew the carnage she was probably going to encounter. Her alliance with a dirtbag like Benjamin should have been her "sign". Too bad her poor choices led to her death.
The examples I would have cited are Alger Hiss and the Rosenbergs.