Home Before you post another photo online…Read this! PALO ALTO ? FEBRUARY 2: Facebook safety page photo. Facebook privacy safety concerns US Congress which sends to Facebook a letter on privacy issues. Facebook is a world largest social network and holds data of about 500 million people as for February 2, 2011 in Palo Alto, California, USA.

PALO ALTO ? FEBRUARY 2: Facebook safety page photo. Facebook privacy safety concerns US Congress which sends to Facebook a letter on privacy issues. Facebook is a world largest social network and holds data of about 500 million people as for February 2, 2011 in Palo Alto, California, USA.