If a bomb went off next to me in Safeway, I'd consider the people who did that to be my enemy for life. This was an attack on civilians, civilian infrastructure and the general population of the world who now has to worry about being murdered by their devices.
Nations have been at war for centuries and later made peace.
Blowing people up in a grocery store is pretty far away from making peace!
i'm just saying that the "enemy for life" is pretty short sighted.