Nuclear Weapons: The Pride of Pakistan

India and Pakistan are historic enemies — both armed with nuclear weapons. Pakistan's fast-growing arsenal is a cause of mounting concern because it now includes small-short-range "tactical" nukes that could be hard to control. With Pakistan's Prime Minister due at the White House this week, we hear about nuclear security in South Asia.

Also on the program, have federal marshals in passenger planes outlived their usefulness?

Photo: Pakistani Prime Minister Sharif meets with US Secretary of State John Kerry at The Hague, March 24, 2014. (State Department)