Lets have Fitzgerald investigate the wiretapping

Why dont they ask Fitzgerald to inevstigate the spying and wiretapping by the Bush administration? If Bush and Cheney feel so confident that what they did was right, I am sure they would like to clear things up.

So, lets have Fitzgerald to investigate the story. He is definitely not political and tough as nail. He is also very fair and objective. I can only imagine who would end up indicted if he run such an investigation.