pull back. it never occurred to them that their interventions would have huge and terrible repercussions decades and a generation later. >> it is the modern version of the debate around the drone wars today and what about the repercussion of these unmanned drop operations that take place in countries like yemen and pakistan and things like that. the book is the brothers. john foster dulles and alan dulles. thank you very much. >> up next, the end of a long ordeal at the end of the world. first, the white house soup of the day is chipotle beef. it's not broccoli cheddar, but it's not bad. we'll be right back. it's time for advil cold and sinus. [ male announcer ] truth is that won't relieve all your symptoms. new alka seltzer plus-d relieves more symptoms than any other behind the counter liquid gel.