The attack ends a period of calm that has prevailed since March and comes on the heels of Israel's return of the remains of 91 Palestinian militants.
Hunger strikes by Palestinian prisoners in Israeli detention ended with a deal this week for better treatment. That showed the power of peaceful protest. If Palestinians adopt nonviolence as a strategic tool, that could bridge the Israeli-Palestinian divide.
The Palestinian Authority of Mahmoud Abbas is growing increasingly intolerant of criticism. Last week the PA blocked eight websites tied to an Abbas rival.