The radio ad sounds unsettling, warning of the dangers of signing political petitions. “California doesn’t license or bond signature gatherers. Many of them are from out of state and move from city to city to carry petitions. Anyone can do it, even convicted felons and forgers,” says the ad. “The legislature even called it an identity theft starter kit.” The tagline says the ad is funded by Californians Against Identity Theft, with no further information. The Watchdog set out to determine who was behind the ad. The domain for the group’s website is registered to the same address and phone...