To be slapped with a shoe is a dirty insult in the Muslim world.
The Iraqi government will try and retake some of the cities have that been captured by ISIS. That means the Shiite government dropping bombs on civilian areas, on Sunni cities. There will likely be a response with car bombings here in Baghdad, and this could be a long fight.
Egypt is the most populous Arab nation, the seat of Sunni Islamic doctrine, and has tremendous political, religious and social influence on the rest of the region. For better or worse, it will lead the rest of the Middle East by example. So goes Egypt, so goes the region.
Not surprisingly, in most Sunni regions there has little appetite for free U.S.-sponsored elections.
For decades, Saddam and his Sunni minority had imposed their will on Iraq, carrying on a 14-century tradition of Sunnis controlling Mesopotamia despite a Shiite majority.
The Taliban mostly attacks international and Afghan security forces. They rarely carry out attacks in markets.