How the UN legitimizes terrorists

The You Tube above shows Palestinian terrorists using the cover of a UN ambulance in order to commit their acts of terror. What does this do? It takes away the cover of "neutrality" of the UN. Disgusting beyond belief. Also, the following is a must read, written by Alan Dershowitz, explaining how the UN legitimizes terrorists. Important things to remember - this is how the diplomatic community works. It is enough to put one into a total state of despair. UPDATE: More info on Hizballah firing from the vicinity of UN positions.