Caroline Kennedy to be next ambassador to Japan?

Caroline Kennedy, the daughter of former President John F. Kennedy, is under consideration to be the next ambassador of Japan, CBS News has learned.

However, don't expect an announcement this week, CBS News Senior White House Correspondent Bill Plante has learned, as it's not a done deal, contrary to a Washington Post report that "things have apparently been firmed up."

The 55-year-old Kennedy, who backed President Obama early on over Hillary Clinton during his 2008 presidential run, is expected to "thrill the Japanese," as the Post put it, as they "like their American ambassadors to be superstars."

Former VP Walter Mondale and former House Speaker Tom Foley are among the big names who have held the post in the past.

If Kennedy is ultimately chosen and confirmed, she would replace John Roos, who's expected to step down soon.