On one level, bombing ISIS is easy. The U.S. knows where the group operates. There's no need for a ten-year hunt like the one for Osama bin Laden. The terror group has two capital cities: Mosul in Iraq and Raqqa in Syria. Al-Qaeda never had such an obvious home address.

ISIS controls a territory roughly the size of Maryland where 8 million people live. If it's attacked and toppled, who will fill the void?

Many in the U.S. military believe ISIS needs to be immediately, and repeatedly, smashed by American drones and warplanes.

Richard Engel Quotes