Pandora's Locks

A month after the Exxon Valdez wrecked Alaska's Prince William Sound, a fisheries biologist predicted a tiny mussel recently found in Lake St. Clair would cause a worse ecological catastrophe for the Great Lakes. Two decades has proved him right as the zebra mussel, and numerous other invaders, continue to scramble the ecosystem of the lakes. In his new book Pandora's Locks, Jeff Alexander calls it an underwater wildfire that will never be put out. He joins us this week on Points North. Live Friday morning at 9:00.