Motivation.
"One might ask why Israel didn't just pop this guy with a rifle shot if they knew where he was. Again, mobility of the target and lack of covert access of Israeli agents to the Gaza strip may have been issues. Or maybe the Israelis were trying to make a big noise to scare people. I don't know."
Some folks are saying that the Israelis don't want peace, as any agreement signed now would mean the end of settlement building. Under this scenario, the missile attack after a peace overture by Hamas (bloodthirsty GDed killers!) was designed to sabotage the process.
Arf