More than two years after a medically unfit bar pilot plowed a cargo ship into a Bay Bridge tower, the waterway remains vulnerable to further oil spills because other bar pilots may be unfit for duty.
The nearly 60 local bar pilots who guide ships through San Francisco, San Pablo and Suisun bays came under intense scrutiny in late 2007 after a colleague, Capt. John Cota, directed the Cosco Busan container ship into the bridge, causing a 53,500-gallon oil spill.
National Transportation...
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