David Letterman simply asked about "what everyone's thinking about," meaning to clear the air. And this time we're not talking about John McCain.

Last night he questioned (some say "grilled") actress Anne Hathaway about her relationship with Raffaello Follieri, who turned out to be a con man -- arrested in June on charges of wire fraud and money laundering.

Letterman seemed to simply wipe the slate of all the tabloid speculation, but Hathaway was clearly uncomfortable with the questions.