CHONGQING, CHINA - MARCH 3: (CHINA OUT) Hearing-impaired children play at the Hearing and Language Rehabilitation Center for the Deaf Children of Chongqing Disabled Training Center on March 3, 2008 in Chongqing Municipality, China. China has about 27.8 million people who have hearing impairment and the country is building a hearing and language rehabilitation service system which reportedly will cover 80 percent of its counties by 2015. (Photo by China Photos/Getty Images)