SAN FRANCISCO (Reuters) - A video calling for the arrest of Joseph Kony, the fugitive leader of the Lord's Resistance Army militia group in Uganda, swept across the Internet this week, attracting a wave of support on Twitter and Facebook along with a skeptical backlash against a little-known team of filmmakers based in San Diego. The 30-minute YouTube video was the centerpiece of a campaign that spread on Twitter beginning on Tuesday via hashtags such as #Kony2012 and #stopkony. By Thursday, the YouTube video had been viewed almost 40 million times, while Tweets about Kony had become the No. ...