'monster' nuclear warhead B53 dismantled but WHY?– USATODAY.com

Closing a Cold War chapter, technicians Tuesday dismantled the last of the most powerful U.S. nuclear bombs ever built.

via www.usatoday.com

THANK GOD! This thing is 600x stronger than the one that destroyed Hiroshima in 1945. I mean really what were we thinking when we built this thing. That and comically we made 300 of them. 

In the 1960's the Soviets apparently tested a bomb that was 4,000 times greater in terms of yield than the Hioshima bomb. 

-From http://wardhayeswilson.squarespace.com

According to the above site apparently in stock we have weapons that have approx 24x the strength of the Hiroshima Bomb... That makes me feel better.