While that line of thinking is popular on FR, imo it's falacious.
Attacks will be by terrorist groups operating from the West Bank and Gaza, not the PA police (same people, two jobs).
Israel was attacked by terrorists based in Egypt for years. When Israel responded in 1958, the world, including the US, screamed.
Same thing in Lebanon, terrorists attack, when Israel entered Lebanon, the world screamed. The PA won't be any different.
There is a difference: Egypt and Lebanon were not viewed by the rest of the world as people striving for their independence from their "occupier" - Israel. The Palestinian's terrorism has been "justified" by the world as a fight for independence. Once there is a Palestinian state, that excuse no longer holds.
Those in the world who are anti -Israel will remain so, no matter what happens. But we're chiefly talking about America, and Bush, who have gone out on a limb to implement the roadmap. When the new state of Palestine continues to attack, the roadmap will have been proven a fraud, and Bush, I believe, will turn Israel loose to do whatever they feel they have to do to eradicate terrorism in their midst.
I also believe that's what Sharon has in mind, as well.
Just my opinion, FWIW.