"The indictment clearly states that Vice President Cheney, Lewis Libby and Karl Rove were the officials responsible for the leak of Valerie Plame’s identity. Yet, for the last 2 years these key officials in the Bush Administration operated glibly while knowing full well they were the wanted subjects who George Bush instructed to “cooperate fully with the investigators”.
"If one would pretend to believe George Bush wasn’t aware of the culpability of his key advisors, then the alternative is worse; they had such little regard for this President that they lied and connived right under his nose. Special Prosecutor Fitzgerald said, “…whether national security was compromised by inadvertence, by recklessness, by maliciousness is extremely important. We need to know the truth.” Grand Jury witnesses can speak freely. Cheney, Libby and Rove can tell the truth to the American people any time they choose; or any time this President demands they tell the truth or be fired."
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http://www.lightupthedarkness.org/blog/?view=plink&id=1428