What is Tragedy?

One day George Bush is going to give a speech at an Elementary School.

He asks the teacher what the children are studying and  she replies that they are learning about Greek Tragedies.

So the President decides to talk about Tragedies. He asks a student, "What would you consider to be a tragedy?"

The kid thinks for awhile and then says, " If a boy is running after  a ball into a street and gets run over by a car and dies."

Bush responds, "No, I don't think that's a tragedy... that's an accident."

Then Bush asks another kid to give an example of a tragedy.
The kid says, "If a bus full of kids drives over a cliff and they all die."

This time Bush says, "I don't think that's a tragedy... I think that's a great loss." So again Bush asks another kid to give an example of a tragedy.

The kid responds, "If you and Dick Chenney are on Air Force One and it crashes."

"Right!" says Bush to the kid. "That would be a tragedy... how did you ever know that?"

Quickly, the kid replies, " Because I know it's not an  accident and I know it's not a great loss."