Cellphone industry attacks San Francisco's ruling on radiation

Last week, the San Francisco Board of Supervisors passed a law -- the first in the nation -- requiring retailers to inform their customers how much radiation the cellphones on their shelves emit, so shoppers can figure out how close the devices come to the upper limits on radiation set by the Federal Communications Commission.

The law, which goes into effect early next year, didn't mention the word, but it was all about one thing: cancer, and whether cellphones cause it. The cellphone industry answered with its own C-word -- cancel. After the vote, the CTIA wireless trade group called off its fall show, scheduled for San Francisco. Elsewhere in the country, the industry has been more successful. Earlier this year, similar laws in Maine and California were beaten back by the makers of the iPhone and Droid and the telecom giants that carry those phones on their networks.