Do you remember what Sidney Blumenthal did during the Clinton impeachment? He went on tv and lied about his testimony. At least this time Wilson can't say anything about what is going on inside the investigation, because he either doesn't know, or can't say. Anyway, Wilson doesn't work for the CIA, so he can't really leak security secrets, but his wife can.
"Anyway, Wilson doesn't work for the CIA, so he can't really leak security secrets, but his wife can."
You actually have this backwards. Under the law, Plame could not be prosecuted for "outing" herself (if she was covert, which she wasn't).
But Wilson could be.