The Power of the Atom

 is a Fallout 3 quest. It is also an Xbox 360 achievement.

It is given to you by Mister Burke, who wants you to help him detonate the nuclear bomb in the middle of Megaton, as his employer, Allistair Tenpenny, considers it a blight on the landscape of the Capital Wasteland. Burke can be found in Moriarty's Saloon in Megaton.