We just heard from Jennifer Blessman at Forbes, who attended college with David Gregory at American University (Class of '92, woo-hoo!), lived on his floor in the dorm, and shared common frosh classes with his long, tall self. She kindly offers some intel on Gregory's height; not an actual figure -- that's still a mystery -- but some lore, if you will:

My friends and I used to -- and still do - call him 'Big Tall Dave':

"Ooh! Big Tall Dave is reporting from the White House!"
"Ooh! Big Tall Dave is hosting the Today Show this morning!"

We do, too. But we also hope to find out how tall he actually is. Like, in feet and inches. Or meters and centimeters for you metric types out there. Or ampoules. Yeah, that's easy to measure. We dare Scott McLellan to try.

*From Bush's prime-time press conference on April 28, 2005, before an audience of millions:

Bush (calling on Gregory): Stretch. (folksy grin) You mind if I call you Stretch in front of --
Gregory: I've been called worse.