Confronting ISIS

Smoke rises in the horizon following US airstrikes targeting Islamic State (IS) militants at Mosul Dam on the outskirts of the northern city of Mosul where insurgents are fighting Kurdish forces on Au

As President Obama commits the U.S. to a "relentless" response to ISIS after the killing of photojournalist James Foley, George Packer, staff writer for The New Yorker, talks about what's ahead and to what extent we're back where we started.