Another Palestinian suicide murderer claims seven Israeli lives. Hamas justifies the atrocity by calling it a legitimate act of self-defense. Evidently, in the radical Palestinian mind, such as it is, Israeli restaurant patrons are serious threats to the safety of the Palestinian people.
Israel cannot allow the slaughter of their citizens to continue. The Palestinians have clearly shown they're not interested in living in peace with Israel. Ed Morrissey at Captain's Quarters puts it this way:
The Palestinians will never disarm under their present political structure. They have proven over and over again to have Israel's annihilation as their national goal. The only hope that the world has in ending this conflict is either to allow Israel to complete its withdrawal and border wall to seal off the Palestinians altogether, or to allow both sides to fight an open war with the entire area as a winner-take-all. The Palestinians have voted for this approach twice. They will not change until they understand that they still have something to lose in the process. Until the impulse for peace and rational co-existence comes into being in the West Bank and Gaza, we have to acknowledge the reality that the Palestinians do not want either.
There is a third alternative for the Israelis. They could pack up and move to Greenland. Their choices are wall, war, or walk. The last isn't likely, and the left, by opposing the first, makes the second almost inevitable. War would be tragic, but that's what the Palestinians voted for when they voted for Hamas.