These rewards were first bestowed in the 1970s when the Palestine Liberation Organization was unabashedly committed to terrorism. In fact, Chairman Yasser Arafat was invited to speak to the U.N. General Assembly in 1974 at a time when his organization was seeking to destroy a member-state of the U.N. by terrorism.
By rewarding Arafat and the PLO for such behavior, the U.N. made it clear that the best way to ensure that your cause is leapfrogged ahead of others is to adopt terrorism as your primary means of protest. The Tibetans, whose land has been occupied more brutally and for a longer period than the Palestinians, but who have never practiced terrorism, cannot even receive a hearing from the U.N.
From the always brilliant Alan Dershowitz, making the case against the UN as the world's worst terror enabler. Noam Chomsky would rather speak at a Young Americans for Freedom event than debate this guy, God bless him.