Imposing roughly the same cautionary standards for cell phones as for fatty food or sugary soda, San Francisco voted on June 15 to require all retailers to display the amount of radiation each phone emits, reports the New York Times. The law, believed to be the first of its kind in the nation, came despite a lack of conclusive scientific evidence showing that the devices are dangerous—and it came amid opposition from the wireless telephone industry, which views the labeling ordinance as a potential business-killing precedent. But the administration of Gavin Newsom, the city’s tech-happy mayor, called the vote a major victory for cell-phone shoppers’ right to know. “It’s information that’s out there if you’re willing to look hard enough,” said Tony Winnicker, a spokesman for Newsom. “And we think that for the consumer for whom this is an area of concern, it ought to be easier to find.” Both the National Cancer Institute and the Federal Communications Commission say that there is no scientific evidence that wireless phones are dangerous, but each agency continues to monitor continuing medical studies…