Test Drive a Sub In the latest National Geographic Radio Expedition, NPR's Alex Chadwick takes an underwater drive in a one-man submarine off the coast of Monterey, California.
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Test Drive a Sub

Only Available in Archive Formats.
Test Drive a Sub

Test Drive a Sub

Test Drive a Sub

Only Available in Archive Formats.

In the latest National Geographic Radio Expedition, NPR's Alex Chadwick takes an underwater drive in a one-man submarine off the coast of Monterey, California.