You wanted an example on how Iraq supported terrorism, I gave it to you, so naturally you try to spin the discussion in some other direction "well, yeah, but why didnt the US then invade this or that nation who ALSO supports terrorism"...predictable and pointless.
Pongo, you have to (try) to separate between "palestinians" and "palestinian terrorist organizations" I know its hard, because they are practically synonymous....but anyway, you have to try.
When the US and Israel are negotiating with the palestinians, they are not negotiating with the Hamas or the Hezbollah or the Al Acqsa martyrs brigades, instead they are negotiating with the Palestinian Authority.
Naturally it is a tad complicating when Arafat is both the leader of the PA and the innoficial leader of the Al Acqsa martyrs brigades...but this is a fact that most westerners in general, and the pacifist anti-Israel lefties in particular, conveniently overlooks all the time, so maybe you could too.