The revelation came in an interview with CNN's John King in which Obama said, "I think we're going to be able to beat this back."

"I think we're going to be able to hang onto one of these. My working assumption, and this is not new, is that anything I write on an e-mail could end up being on CNN," Obama said.

"So I make sure to think before I press 'send'," he said.

Obama did not tell CNN how he would overcome the major hurdles to keeping his BlackBerry, including the requirement to keep a record of every White House communication.

The major concern about using a BlackBerry as president stems mostly from using it for outbound e-mail, .