GUILTY CONSCIENCE?This is a frightened man. In a “highly unusual” move, Karl Rove wants to go back and re-testify to the grand jury. The key question here is whether this is at his initiative, or Fitzgerald’s – there’s some confusion on this. But if it is at Rove’s request, it is pretty clearly an effort to supplement or revise his previous testimony. For a Smooth Operator like Rove, what prompts