Guam Congresswoman Madeleine Bordallo says she believes Johnson was not posing a serious question, telling KUAM News, "He was saying that is jest. I don't know how it was said or when, but I know Congressman Johnson; he's been here. I'm sure it was just a joke."Assumptions, as a Marine Gunny once advised me, are not always good.
But here, judge for yourself. Joke or not? Begins about the 1:18 point.
When I was kid there, we used to run really fast back and forth across the island to get it rocking...
UPDATE: Newly released deep sea photo of Guam as seen from below:
Apparently Congressman Johnson saw this previously classified (WTS*) photo just before the hearing.
UPDATE2: The "official" version of Guam's geology here. The truth is out there.
UPDATE3: You can find a calculator for determining the resistance to capsizing here. You have to first know how much Guam weighs, though.
UPDATE4: Yes, I know he's not a well man. Perhaps he should take medical leave.
*WTS= Way Too Secret