Here are several very informative and interesting videos that may shed some light on many of the topics found on this site. I highly recommend each of them. All videos referenced here are on Google videos or some other site and may be watched/streamed for free.
 

Overview of America
This video was made by the John Birch Society.
It is a great summary of what the Founding Fathers intended for this country to be.
It discusses limited government, republic vs. democracy, and the free enterprise system.

The U.N. Deception
Here is another video from the John Birch Society.
It is a very informative look at the United Nations and world government.
The Council on Foreign Relations is heavily emphasized as well.

America: Freedom to Fascism
This video was made by Aaron Russo.
It discusses the Federal Reserve, IRS, the National ID card, and other issues.
A DVD copy of this film can be purchased for only $1 from freedomtofascism.com.

One Nation Under Siege
This video was produced by William Lewis.
It mentions the attack on American privacy, government control, spying and tracking of citizens, etc.
9/11 was just the tip of the iceberg. See what else the government has been up to lately:
loss of freedoms, education/conditioning, and world government.
There are a few previews before the real film starts.