The Wall Street Journal thinks Edward Snowden may have provided China with a powerful new cyberweapon.
China is known for its so-called Great Firewall, a nationwide system of web blocks and filters that the government uses to maintain strict online censorship in mainland China.
Now it reportedly has a complementary offensive tool — called the Great Cannon — to go after sites it doesn't like.
http://www.businessinsider.com/wall-street-journal-snowden-and-chinas-great-cannon-2015-4