Plame hearing to be closed?

The Politico reports that the Plame hearing called by Henry Waxman, scheduled for Friday, (see today's article) may not come off as planned.

Committee sources said on Wednesday there have been negotiations with the CIA over ground rules for the questions that Plame can - and cannot - be asked. And with those talks still ongoing, Virginia Rep. Tom Davis, the committee's ranking Republican, has threatened to call for a closed hearing if an agreement isn't reached by Friday.

"It would be with great reluctance, but we have to protect confidential information," Davis told The Politico.