Recruiting for ISIS, The Spill at Dan River, The Smartest Dog in the World

Clarissa Ward reports on accusations that Islamic radicals are campaigning for ISIS in the West; then Lesley Stahl reports on how Duke Energy is handling over 100 million tons of coal ash waste in N.C.; and, Anderson Cooper meets Chaser, a dog who can identify over a thousand toys.

The show’s own verdict is on its page.