JOHANNESBURG (Reuters) - Promoting condoms has failed to stem the spread of AIDS and may have increased promiscuity, the Roman Catholic Church in South Africa says, sparking criticism from AIDS activists. Cardinal Wilfred Napier said there was simply no evidence that promoting condoms had worked, citing the fact that as a contraceptive, they come with a failure rate which implies they probably do not always stop HIV transmission. "Can you show me one example where condoms have stopped the spread of AIDS?," he said in a telephone interview on Wednesday. "If you look at South Africa, millions have been spent...