Current state of the Islamic State a year after its leader was killed

It's been a little more than a year since the Islamic State terrorist group lost its leader, Abu Bakr al-Baghdadi, and its control over territory in Iraq and Syria. But the group is still very active, carrying out attacks around the world and recruiting new members. Asha Castleberry, a national security and foreign policy expert, discusses the current state of the Islamic State and the threat the group poses around the world.