The Columbia River Basin once teemed with young salmon heading toward
the ocean and mature salmon returning to their home rivers and streams
to spawn. Now, many salmon species of the Pacific Northwest are extinct,
and thirteen are currently
endangered. This film investigates the parallel stories of collapsing Pacific salmon populations and how biologists and engineers are trying to shore up their numbers. Salmon are now conceived in laboratories, raised in tanks, driven in trucks and farmed in pens...NATURE seeks to explain why...7pm
NOVA traces new clues to the historic sinking of the USS Arizona at Pearl Harbor, where 1,177 crew members perished in 1941...the greatest loss of life in United States naval history. Could it have been a Japanese "midget sub" firing torpedoes, instead of bombers? NOVA...8pm
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