....when I was about eight years old, I had a bathtub toy submarine that
rose and sank, and was powered, if memory serves, by baking powder.
It was very much like this:
http://www.amazon.com/Diving-Submari.../dp/B000V4KSHA
It operated just like a real submarine, so I am sure I am qualified to
drive a Los Angelese class attack sub.
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Proud to be a Liberal.