27:50

The Return of the Black Death: The Plague of Children

22:56

Sarin: The Nazi Nerve Gas

49:57

The Deadliest Infectious Disease of All Time | Crash Course Lecture

23:10

HIV/AIDS: Plague of the 21st Century

21:01

Watch Trudeau speak directly to Trump during blistering speech

21:09

Dennis Rader: The BTK Killer

29:32

The Spanish Flu: The Greatest Pandemic of the 20th Century

15:07

CIA Begins Targeting Mexican Cartels