Cloned monkeys, a first, spur inevitable questions of when human clones will follow

In a feat that raises questions about how close the cloning of humans may be, scientists in China announced on Wednesday they have successfully cloned two long-tailed macaque monkeys. The cloning of primates was long thought to be fundamentally more difficult than horses, sheep and other mammals and therefore much further away.  "It’s a significant advance. Nobody has previously been able to create a cloned non-human primate,” said Arnold Kriegstein, director of the stem cell center at the University of California at San Francisco.