Brian Williams is in Afghanistan and, on Nightly News this evening, he will report on the hunt for Osama bin Laden. We can, however, already report that while we appear to be no closer to finding out where he is, there are a few places that we can rule out.
It can definitely be shown that he is not in Nancy Pelosi's office nor at Diane Feinstein's Washington Conference Center, site of that meeting between Obama (not Osama) and Hillary Clinton.
He is definitely not in the West Wing, either. We can not, however, rule out the possibility that he might be at the famous undisclosed site in Washington conferring with the Veep.