Thursday morning, animal rights activists in Los Angeles targeted the US headquarters of China Southern Airlines with a protest to urge the airliner to stop shipping primates to laboratories in the US. China is the largest exporter of primates to the US. But, other leading Chinese airlines, including Air China, China Eastern Airlines and Hainan Airlines, have all ended the practice of shipping primates to be headed to labs for experimentation and often death. Pacifica's Dan Fritz was there and files this report from Los Angeles.