How Big Is Your Bubble, Mr. Bush?

Regarding burst bubbles, there was tech, now housing, with banking around the corner, but not yet oil, it seems.

With 3,000 points off the Dow, and probably more to come, you have to wonder: is the Really Big Bubble actually the US economy, thought to be ever-expandable, reliable, safe and pre-eminent worldwide?

For Pres. Bush, the Herbert Hoover comparisons get more relevant.