
Preview | World's Biggest Bomb
Preview: Season 11 Episode 4 | 30s
Airs Wednesday, March 20, 2013 at 10:00 p.m. ET/PT. Check your local listings.
Beginning in the 1950s, American and Soviet scientists embarked on a perilous race to see who could build and detonate the world’s largest bomb. The results exceeded all expectations about how big a bomb could be built. Initially, the Americans led the way, but then left the field clear for the Soviet Union to break all records.
Problems playing video? | Closed Captioning Feedback
Problems playing video? | Closed Captioning Feedback
SECRETS OF THE DEAD is made possible, in part, by public television viewers.

Preview | World's Biggest Bomb
Preview: Season 11 Episode 4 | 30s
Beginning in the 1950s, American and Soviet scientists embarked on a perilous race to see who could build and detonate the world’s largest bomb. The results exceeded all expectations about how big a bomb could be built. Initially, the Americans led the way, but then left the field clear for the Soviet Union to break all records.
Problems playing video? | Closed Captioning Feedback
How to Watch Secrets of the Dead
Secrets of the Dead is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet, Roku, Samsung Smart TV, and Vizio.

Providing Support for PBS.org
Learn Moreabout PBS online sponsorshipSupport for PBS provided by:
SECRETS OF THE DEAD is made possible, in part, by public television viewers.