Both the outgoing governor, U.S. Homeland Security Secretary-nominee Janet Napolitano, and her successor, Jan Brewer, have called for major reform of the state's initiative process. So has the Arizona Republic, in this recent editorial.  It's hard to blame them. Arizona saw perhaps unprecedented signature fraud last year. A typical validity rate for signatures collected in an initiative campaign is 70 percent. But multiple measures last year had validity rates of less than 50 percent. That's strong evidence of institutional, across-the-board fraud.