Investors sit in front of an electronic board showing stock information at a brokerage house in Shanghai, June 25, 2013. China shares pared hefty losses after earlier testing 4-1/2-year lows on Tuesday ahead of a press conference in Shanghai at which traders hope the Chinese central bank and authorities will address recent market turmoil. [Photo/Agencies]

Students pose for an anti-drug campaign under a banner reading, "Say no to drugs" at Bozhou vocational and technical college, Anhui province, on June 25, 2013. The 26th International Day Against Drug Abuse and Illicit Trafficking will be observed on June 26. [Photo by Zhang Yanlin/Asianewsphoto]