OK, we know he simply cannot dance, but can he front a good game show? Crossfire cohost turned MSNBC newsman Tucker Carlson has been tapped to host Who Do You Trust?, a quiz-show pilot produced for CBS by Phil Gurin ( The Weakest Link). As Variety notes, a precedent was set for such an incongruous transition when a former Richard Nixon speechwriter ultimately wound up hosting... anyone, anyone? Win Ben Stein's Money, that's right.