Last night the discovery channel ran this one: end result was , get out of the car ASAP. Car they were using floated for two minutes. Once it was under, you COULDN'T open the doors.

They're still working on the computer simulation. <img src="/images/graemlins/smile.gif" alt="" />
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Member of the toughest, meanest, deadliest, most unrelenting -- and ablest -- form of life in this section of space, a critter that can be killed but can't be tamed. --Robert A. Heinlein