**FILE**Archbishop of Sydney, Cardinal George Pell celebrates a special mass in Sydney's St. Mary's Cathedral in this Sept. 14, 2004 file photo. The Catholic archbishop of Sydney, Cardinal George Pell, gave the warning to lawmakers ahead of a debate in the New South Wales state Parliament, Wednesday, June 6, 2007 over a bill that would lift a ban on the splicing of DNA from skin cells into human eggs to produce stem cells for medical research. (AP Photo/Rick Rycroft,files)