Ra nailed it on the head and then some.
What you are seeing is not the palestinians, but probably some syrian, saudi,alqueida/etc led effort to keep the situation "fluid". As long as Israel is under siege with terrorrist attacks, as long as israel is shown on tv bulldozing over towns and yuppie activist foreigners, their image, and the USA's by association will keep being soiled. Not to mention it helps lots to have a scapegoat so your own uneducated, starving, ANGRY population ... helps to keep them angry not at your own islamic dictatorshipwhatchamacallit elitist government, but at the evil west and the zionist monsters who, being thousands and thousands of miles away, are 100% responsible for them not having water or books or freedom.
Pass me the hammer Ra!