'Wikipedia' creator sets sights on unsafe food

Wu Heng's favorite meal was braised beef and rice before he saw a post on a Chinese social networking site displaying two identical photos of "beef" side-by-side.

One was beef from cows, the other was pork chemically treated to taste like beef. "Cheaters! Unacceptable!" he thought.

Outraged, Wu put his master's degree on hold to create what he describes as a "Wikipedia" that tracks food safety and questionable manufacturing in China.