Barack Obama talks about 'the bomb' that fell on Pearl Harbor

In this video Barack Obama believes a "Bomb fell on Pearl Harbor."

"Throughout our history, America's confronted constantly evolving danger, from the oppression of an empire, to the lawlessness of the frontier, from the bomb that fell on Pearl Harbor, to the threat of nuclear annihilation. Americans have adapted to the threats posed by an ever-changing world."
- video encodings still in process -