A statement by Hong Kong online media platform "In Media Hong Kong" supporting Edward Snowden, a contractor at the National Security Agency (NSA), is seen alongside a petition "Pardon Edward Snowden" at the White House website, on a computer screen in Hong Kong in this June 12, 2013 illustration photo. A potential extradition tussle in Hong Kong over an American who has exposed the U.S. government's top-secret surveillance programs could prove to be a test case for civil liberties in the financial hub controlled by China. The Chinese characters on the photo reads, "Defend liberal Hong Kong. Protect Snowden".