Enemies

I just heard a coworker talking to another coworker about the Boston bombing.
This man had fought in the Iraq (2nd) war.
He kept going on and on that that we have enemies that want to kill us.
He said that as much as the "liberal bumper stickers want to say otherwise", this is the reality of our situation.
That we need to remain vigilant.

Well.
That's all as may be, but I would like to interject a little rational thinking.
We currently have no idea who performed the bombing.
What purpose does it serve to even begin down a path like this?
It furthers only fear and hatred. What would he say if it was a domestic terrorist?
If a domestic terrorist, what if this person is conservative or liberal? Or just anti-government?
I'm not saying that we should lighten our search, or that feelings of anger are not to be expected...
I'm just saying vigilance can coexist with love. Vigilance does not require hatred or fear for fuel.