So Iron Man is a Skrull?
Or maybe a Skrull who thinks he's Iron Man.
Unless I'm mistaken, there's been no reason for the Skrulls to keep the people they've replaced around.
So if the above statement is true:
Where is Tony Stark?
Was the Superhuman Registration Act Tony's Idea, or Skrull-Tony's? Of course, in hindsight the SRA makes commplete sense if you want the previously united heroes of Earth to be bitterly divided, each faction with only a piece of the puzzle.