Facebook provides rare peek at how the 900 million users are protected

SAN FRANCISCO: Facebook Inc offered a rare peek on Tuesday at one facet of the elaborate system it uses to police its 900 million-user social network, as it attempts to keep it free of content it deems offensive, illegal or just plain inappropriate.

The company said it employs "hundreds" of staffers in several offices around the world to handle the millions of user reports it receives every week about everything from spam to threats of violence.