In it’s first public meeting this morning, the deficit supercommittee voted to allow for secret meetings, despite the appeals of many lawmakers for complete transparency:

Under a rules package that was unanimously approved during the first supercommittee meeting, the 12-member panel can go into a secret meeting if a majority of seven members agrees to do so. Otherwise, meetings are to be held in public.
Rep. Jeb Hensarling (R-Texas), one of the committee’s co-chairmen, acknowledged in his opening statement to the supercommitee that “there will be some discussions among members that will not be public,” but assured the gathering that all votes will be public.
“I believe the American people deserve to have full access to committee business the way they do with every committee here in Congress. I believe these rules will allow us to do exactly that,” co-chairman Sen. Patty Murray (D-Wash.) said, adding that they allow members to meet privately to discuss important issues.

More here. See the complete outline of committee rules here.