I think it's completely different than anyone thinks it is. In the song eminem and 50 cent talk about 9/11, nuclear bombs. Along with them saying we don't even know what's coming. I have a feeling they're trying to send a message to us, letting us know we're going to have a nuclear warfare in the coming future. "You're about to witness the power" eminem is probably talking about the power of a fucking nuke going off.