Actually, I am going to be as bold as to say that it is possible that the United States could be the revived Roman Empire with all is colusiums, even our government is copied after what Rome had with it's senators and republic. The buildings etc. I surely hope not.
Number one: Rome was a Republic, then an Empire. So if you're alluding to Christ's crucifixion, your argument is innately flawed. Rome became an empire in 44 BC, when Julius Cesar was appointed perpetual dictator. Pontius Pilate served as a Prefect of Judea under the Roman Empire from AD 26-36. Prior to that it was a classical republic.
Number two: Nip your paranoia in the bud, the United States isn't the only country with Roman influenced architecture (Rome was home to some of the greatest architectural accomplishments known to man), and two, the United States is not the only country with a form of government that was influenced in one way or another by the classical republics of the world.
I give you this: http://en.wikipedia.org/wiki/File:Republicas_mundiales.png