HONG KONG, China (AFP) — A classic Andy Warhol portrait of former Chinese leader Mao Zedong fetched US$12.7 million at auction in Hong Kong on Sunday, Sotheby’s said — well short of the top estimate of more than $15 million. The sale of the 1973 screen print by the legendary United States pop artist attracted plenty of attention before going under the hammer in the semi-autonomous city owing to sensitivity about any use of Mao’s […]