See what happens when ordinary people receive extraordinary powers?
They abuse the powers.
They are feared by ordinary people.
Besides, none of them can leap over tall buildings or are faster than a locomotive. None of them fight for truth, justice, or the American way.
They're supposed to save the world. But from what? Them?
The 4400 is asemi-interesting tv series that may enjoy a third season before the audience gets bored and moves on to reality tv or another cop or hospital drama.