Scott Pelley sits down with CIA Director John Brennan to discuss whether there could be an ISIS attack on American soil. The CEO of a major coal company was given a misdemeanor conviction for the death of 29 miners. The family of the deceased are calling it a "perversion of justice." Anderson Cooper reports. A "mobile money" revolution has swept Kenya, where people can send and receive money on their cell phones. Lesley Stahl has more.
