Photo: Teleprompter In The Briefing Room

In a rarely seen moment in the White House Briefing Room, CBS News White House correspondent Mark Knoller captures the White House staff setting up the teleprompter ahead of President Obama's upcoming 12:30 p.m. ET press conference:

(CBS/Mark Knoller)

FYI, Mr. Obama's press conference will be live on this site at 12:30 p.m. ET. And stay tuned on CBSNews.com following the event for a special edition of "Washington Unplugged" with instant analysis of the president's comments.

Update 12:09 p.m. ET: Mark Knoller now reports that the White House has changed its mind about using a teleprompter for the news conference. It's now been removed from the briefing room.