I don't know anyone at the highest levels who approved Abu Ghraib. If President Barack Obama for a moment thought that somebody at a high level had approved it, he would go after them.
I think about the cosmic snowball theory. A few million years from now the sun will burn out and lose its gravitational pull. The earth will turn into a giant snowball and be hurled through space. When that happens it won't matter if I get this guy out.