Digital Weapons Help Dissidents Punch Holes in China's Great Firewall

The curt knock on the door of his hotel room woke Alan Huang with a start. He looked at the clock: 5:30 am. Huang had been in Shenzhen, China, for only a few days; who could be looking for him at this hour? He groggily undid the lock—and found a half-dozen police officers in the […]