Cloned sniffer dogs on the job at South Korea customs agency

South Korean customs authorities say they have successfully turned a group of cloned Labrador retrievers into world-class sniffer dogs. To create the ideal customs dogs, a team of Seoul National University scientists , led by researcher Lee Byung-Chun, cloned a successful Canadian sniffer dog in 2007. Lee was a former colleague of Hwang Woo-Suk , the scientist who was disgraced when his claims about his work with human stem cells were proved false. But Lee severed ties with Hwang in 2006,