We've been asking musicians what they think of when they think "American music." Today we hear from Khalif Diouf, aka Le1f.
Journalist and author Mark Hertsgaard is calling on parents to do something about climate change, in the same way they would step in if a speeding train were headed for their child. Hertsgaard is co-founder of a new group called “Climate Parents,” that aims to lobby government for polices to reduce climate change.
Experts share a range of perspectives on how to combat the Islamic State militant group, and the role the U.S. should play.