America's First Law of Motion:
An object in motion tends to stay in motion, and an object tends to stay at rest, unless an external force acts upon the object.
Meaning
America tends to go its way unless acted upon by Osama.

America's Second Law of Motion:
The acceleration of a body is proportional to the force applied on it.
Meaning
The number of sleeping pills an American takes is directly proportional to the number of video tapes Osama releases.

America's Third Law of Motion:
For every action, there is an equal and opposite reaction.
Meaning
For every death of an American, there is a death of an afghan.