What does the arrest of "El Chapo" Guzman mean for the drug war?

What does the arrest of "El Chapo" mean for the drug war?
Learn more about the drug kingpin's arrest via Al Jazeera America.

Guest:

Sam Quinones
Reporter, Los Angeles Times

Will U.S. Army troop reduction plan harm U.S. security?
Learn more via The New York Times.

Guest:

Kevin Baron
Executive editor, DefenseOne

How will the situation in Venezuela impact South America?

Guest:

Christopher Sabatini
Senior Director of Policy, Americas Society and Council of the Americas
Founder and editor-in-chief of Americas Quarterly

What's next for Ukraine?

Guest:

Gregory Feifer
GlobalPost Europe editor
Former Moscow bureau chief, NPR
Author of "Russians: The People Behind the Power"

"Secrets of the Vatican" documentary focuses on scandal within the Catholic Church
View the trailer here. 

Guest:

Antony Thomas
Director of Frontline's "Secrets of the Vatican"

When a space rock hit the moon in September, the explosion could be seen from Earth
Learn more via Al Jazeera America.

Guest:

Derrick Pitts
Chief Astronomer, Franklin Institute Science Museum