SAN FRANCISCO (Reuters) - California is moving quickly to launch a $3 billion stem cell research program approved by voters this month even as the United States is leading a campaign at the United Nations (news - web sites) to ban all cloning of human embryos, including for stem cell studies. California's proposition 71, approved in the Nov. 2 election, calls for the state to fund $300 million a year in stem-cell research over 10 years. Last week the state began appointing members of an oversight panel and it has started evaluating plans for new labs and research sites. Researchers...