It's not about revenge. It's about stopping them before they kill again -- perhaps even before they kill this eloquent young widow and her children.
It is a very hard, sad truth, but it is the truth -- it is either us or them. They have left us with no alternative.
It's not about revenge it's about justice. If we act vengefully without much forethought we are savages. If we just throw bombs around indiscriminately how does that change anything?