The PA, Fatah, agreed to disarm terrorist groups in the West Bank and Gaza in 1993, took over physical control in 1995. They have been armed and trained by both Israel and the US over the years. They committed to disarm the terrorists,again, in the Road Map, GWB's watch. To this day they've never done a thing. There are a number of terms for repeating the same mistake hoping for a different result, but stupid is short and sweet.
BTW, turf fighting between Fatah and Hamas benefits no one. Fatah isn't the police force, these are local turf battles for control, Hamas isn't being disarmed. And though Fatah outnembers Hamas by 4 or 5 to one, they'll likely get their collective *sses kicked. Hamas is about ideology, Fatah is about political control and government payrolls, foreign funded.
Well...I dont disagree with you but a preoccupied HAMAS is not a bad thing.