"Thousands of people have submitted written health complaints to the California Public Utilities Commission (CPUC), and in May the World Health Organization made an earth shattering declaration- that non-ionizing radiation from cell phones, cell towers, wifi, and "smart" meters, has been linked with a number of cancers. "Smart" meter radiation is now categorized as a class 2b carcinogen in the same cancer causing category as lead, DDT, and engine exhaust."
http://www.indybay.org/newsitems/2011/07/20/18685460.php