BEIJING, CHINA - JUNE 18: A Chinese Customs official and his drug sniffer dog demonstrate how to detect drugs in suitcases during an open day at a drug dog sniffer training base which is part of China's Customs Anti-Smuggling Office on June 18, 2005 in Beijing. The base trains dogs to detect drugs including marijuana, hashish, heroin, cocaine, opium and methamphetamine hidden in cars and bags. (Photo by Cancan Chu/Getty Images)