Here is a simple.. easy to understand way to shut down the "Rove did leak the actual name" defense in less than 10 seconds (and if you play it right, you can also makes some money or remove the Fright-Winger
TM you are shutting the fuck up from the streets as well).
Simply challenge them to call the Secret Service at their nearest field office and simple say:
"I am going to kill Laura Bush's Husband."
Don't say George W. Bush, or even just his first name. Let them find out they are charged with a crime.