A special look inside the life, pursuit and capture of alleged Mexican drug lord and alleged head of the Sinaloa Cartel criminal organization, Joaquin Guzman Loera, aka El Chapo.

Former presidential candidates Mitt Romney, Michael Dukakis, John McCain, Walter Mondale and Bob Dole share their experiences of losing the presidential race.

Exploring the possibility of the world being on the verge of an arms race in outer space and the belief by some experts - military and civilian - of the inevitability of conflict in space.