the following is taken from the documentary Bowling for Columbine.

1953: U.S. overthrows Prime Minister Mossadeq of Iran.
U.S. installs Shah as dictator.
1954: U.S. overthrows democratically-elected President Arbenz of Guatemala.
200,000 civilians killed.
1963: U.S. backs assassination of South Vietnamese President Diem.
1963-1975: American military kills 4 million people in Southeast Asia.
September 11, 1973: U.S. stages coup in Chile.
Democratically-elected President Salvador Allende assassinated.
Dictator Augusto Pinochet installed.
5,000 Chileans murdered.
1977: U.S. backs military rulers of El Salvador.
70,000 Salvadorans and four American nuns killed.
1980s: U.S. trains Osama bin Laden and fellow terrorists to kill Soviets.
CIA gives them $3 billion.
1981: Reagan administration trains and funds "contras." 30,000 Nicaraguans die.
1982: U.S. provides billions in aid to Saddam Hussein for weapons to kill Iranians.
1983: White House secretly gives Iran weapons to kill Iraqis.
1989: CIA agent Manuel Noriega (also serving as President of Panama) disobeys orders from Washington.
U.S. invades Panama and removes Noriega.
3,000 Panamanian civilian casualties.
1990: Iraq invades Kuwait with weapons from U.S.
1991: U.S. enters Iraq.
Bush reinstates dictator of Kuwait.
1998: Clinton bombs "weapons factory" in Sudan.
Factory turns out to be making aspirin.
1991 to present (NOTE: as of 2002): American planes bomb Iraq on a weekly basis.
U.N. estimates 500,000 Iraqi children die from bombing and sanctions.
2000-01: U.S. gives Taliban-ruled Afghanistan $245 million in "aid."
Sept. 11, 2001: Osama bin Laden uses his expert CIA training to murder 3,000 people.