...and he's stating that he's going to disregard a subpoena from the grand jury. He's saying his reason for this is that he doesn't think he should have to spend his time to go through his emails to provide the information that's been requested and he's assuming that he's a target of the investigation.
This is the interview I can find on the Internet --
Nunberg on subpoena: 'Screw that' - CNN Video -- but the one I'm currently hearing is with Jake Tapper. It's not yet on the web.
I don't know a thing about Sam, but I know he's playing a very high risk game. The guy actually said unequivocally that he's not going to provide the documents and he's not going to appear before the grand jury, and they can arrest him for doing so. What is one to say? Be careful of what you ask for....
EDIT: Here's the Jake Tapper interview with Sam. It's astounding!