FILE - This April 7, 2010 file photo shows Tim Ravndal waving an American flag while holding a copy of the Constitution as Jim Walker speaks to the crowd through a blow horn, in Helena, Mont. Several members of the Big Sky Tea Party Association have resigned after the association's president, Tim Ravndal, was kicked out of the party over an exchange on his Facebook page that appeared to condone violence against homosexuals. (AP Photo/Independent Record, Lisa Kunkel, File)Reuters – A harrowing trip to Africa cemented a filmmaker’s bond with Facebook and created a new way for human rights activists to spread the word — while promoting the social networking site’s month-old streaming video channel.