Human bomb attacks are acts of impotence and they are rarely aimed at invading forces. The vast majority are aimed at non combatants. In Iraq the victims are almost all Shia Muslims. The recent attack in Afghanistan killed one US soldier and 22 others, which suggest that if were targeting "invading forces" he was a poor shot.

A brief comment on the "cultural" battle. One of the significant difference between western culture and the culture of the jihadi is that we do not glorify the depravity that sometimes occurs. By that I mean that people who go on a killing rampage in a high school are not considered someone to emulate and put on posters.