The subjugation & Imperialistic plunder of much of the Third World by the Western States, particularly America & it's junior partner the United Kingdom (including many of the NATO countries).
The more recent crimes of which - 10 million people slaughtered since WWII by the U.S. & U.K. - are either apologized for by governments & the media or totally ignored & even covered up. Of course, I hate to put this in the 'conspiracy theory' bracket, because it's all so blatant & so well substantiated by irrefutable evidence.
I'll cut & paste a list (from an earlier post I made on another thread) of US atrocities since WWII, it is by no means complete:
the 3 million slaughtered in the Korean War during the U.S. led UN police action in the 50s,
the 3.5 million slaughtered in Vietnam by America during the 60s & 70s,
the 1 million killed in Cambodia & Laos during the U.S. 9 year mostly 'secret' bombing campaign during the same time,
the 600,000 killed in Indonesia installing the brutal dictator Suharto & staging the fake communist coup in '65,
the 300,000 killed in the US supported Suharto invasion of East Timor,
the 600,000 killed in Latin & S.America by US installed dictators over the last 4 or 5 decades,
the 1.3 million killed in U.S. led Iraq sanctions (UNICEF figures),
the 100,000 political killings (mainly union members) in US client Colombia whilst receiving massive U.S. military aid,
the 80,000+ deaths of Syrians, Egyptians, Lebanese & Palestinians by Israel whilst receiving massive U.S. military aid,
the 30,000 killed in Nicaragua during the US undeclared war,
the 300,000 killed in the Gulf War (stopping Saddam doing in Kuwait exactly what America had done a year previously in Panaama, ie install a puppet dictator),
the 1 million killed in the current invasion in Iraq,
the overthrow of democracy in Iran in '53,
the overthrow of democracy in Guatemala in '54 (& the brutal torture & murder of 200,000 Guatemalans by the US client military juntas over the next 5 decades),
the overthrow of democracy & installation of brutal dictators in Brazil in '64, in Indonesia in '65, in Greece '67, in Chile in '73,
the overthrow of approx. 20 other governments (since WWII) including Ecuador, Dominican Republic, El Salvador, etc.
the financial support & training for Pinochet's Operation Condor which brought death squads & torture to Chile, Uruguay, Paraguay & even Argentina.
For people wanting links to declassified CIA & State Dept Documents documenting & admitting much of this, please check out the video info section of the following videos, much of which is sourced from the National Archives (at the George Washington University website):http://uk.youtube.com/watch?v=j4jkwGDuwxwhttp://uk.youtube.com/watch?v=0fZUYqp3dCMhttp://uk.youtube.com/watch?v=QP8JyXZavQMhttp://uk.youtube.com/watch?v=hYelJh0_Wsohttp://uk.youtube.com/watch?v=j9tkTEl6ssMhttp://uk.youtube.com/watch?v=SGgl7xc0w6c