As reported by Ananova, The US presidential bodyguard is examining lyrics by Eminem to see whether he has threatened George Bush.
The Secret Service confirmed it was looking at a song which includes the lyric: "I'd rather see the president dead."
The words to the song, We As Americans, are available on the internet and have not been released to buy.
Eminem says in the song: "F*** money, I don't rap for dead presidents. I'd rather see the president dead."
A Secret Service spokesman said: "We are aware of the lyric and are in the process of determining what action, if any, will be taken."
A spokesman for Oscar and Grammy award winner Eminem told CNN the song was not ready for release: "This was an unfinished song, either lost or stolen," he said. "There was no determination where, when, how or if it was going to be used."