Flare-up in Israeli-Palestinian violence: Why now?

Part of Jerusalem is seeing its worst flare-up in years. Here's a look at some of the key questions about the fighting.
What started this new wave of violence?
The violence certainly had not gone away, with rocket attacks from Gaza and Israeli military incursions in the West Bank regular occurrences. But last month's abduction of three Israeli teens who were on their way home from school in the West Bank brought the tensions to a fever pitch. Israelis waited with bated breath, hoping for word that they were alive.
When the bodies of Eyal Yifrach, Gilad Shaar and Naftali Frankel -- a dual Israeli-American citizen -- were found on June 30, the country was grief-stricken. The Israeli government blamed Hamas, which denied responsibility but praised the abductions. Israel carried out arrests and demolished homes of the suspects in the West Bank, and launched airstrikes against targets in Gaza that are used to lob rockets into Israel. Palestinians stepped up rocket attacks and clashed with Israeli troops.