Journalist Rukmini Callimachi on what she's learned about ISIS tactics from her conversations with a German man who joined ISIS and became disillusioned, and from monitoring the organization's own encrypted social media channels.
His book is called Them: Adventures with Extremists. (Simon and Schuster). He traveled around the world interviewing different types of extremistsfrom Islamic fundamentalists in a Jihad training camp, to Ku Klux Klansmen at rallies. Them was first published in the U.K. in the spring of 2001.
Mexican writer Carlos Fuentes. He has written many novels, is currently teaching at Harvard, once served as Mexico's ambassador to France and used to be considered an "undesirable alien" and was denied a visa by the U.S. government.
Journalist and media critic Todd Gitlin whose new book, The Sixties - Years of Hope, Days of Rage, is a social history of the culture and politics of that time from a writer who participated in the freedom and turmoil of the era.