What is a terrorist?

So Public Enemy Number One since the Bush administration, the mastermind of the 9/11 attacks, has been killed.

Lets all celebrate! Let's finally bring the troops home.

I say, not so fast.

Because there most certainly are people out there who are crazy and would think nothing of committing mass murder. There will be a new Public Enemy. It's also true that an act of terrorism can, and has been, committed by Americans. No one corners the market on anger and hatred. Examples:

Timothy McVeigh was a terrorist. He of course blew up the Federal Building in Oklahoma City.

White supremacist groups are terrorists, when they burn churches, or kill non-whites, fueled by their beliefs.

The student who went on a huge shooting rampage at Virginia Tech could be called a terrorist.

Same for the Columbine High School boys, who opened fire on teachers and classmates, and finally themselves.

My point is there is plenty of terrorism both home and abroad. Too often people seem to simplify the definition of terrorist.