It worries me how far Fitzgerald can reasonably be expected to go.
Let's assume for a moment that POTUS is indeed the original source of the Plame leak (and that is not a far stretch imo especially when you take a look at the compilation of facts presented in jbalazs's excellent diary).
Even crediting Fitzgerald with satisfactory levels of integrity, what are the chances of his remaining steadfast if exposed to the full blast of all torpedos launched by an administration hell-bent on protecting the prez at any price? We KNOW what they are capable of. The possibilities go from bribes to blackmail, to planted evidence -- well you get the idea.
How much of a chance you think we have got for the truth to come out?