News bites: Iran threatens to block key oil route

Iran threatened to close a key oil route if Western nations impose new sanctions on the country, The Associated Press reports.

Oil spill news from The Associated Press: “A federal judge on Tuesday dismissed prosecutors’ argument that a BP subsidiary violated its probation after an oil spill because of another spill on Alaska’s North Slope.”

A new study says a San Francisco oil spill took a major toll on Pacific herring, Mother Jones reports.

The Pilgrim Nuclear Power Station in Massachusetts was shut down Tuesday when a small leak was detected, The Boston Globe reports.

NPR examines the trouble with aging nuclear power plants.