Ontario Provincial Police have charged an activist with two counts of defamatory libel for online comments he made regarding undercover police officers. Using fake names, Dan Kellar outed two officers who had infiltrated activist networks. Upon learning that one of them was spotted in Toronto, he put out a “community alert’’ on the website of an activist group he was involved with. Police claim the comments were likely to injure the reputation of the officers by exposing them to hatred, contempt or ridicule. Kellar says the charges are an attempt to stifle dissent. He will appear in court in Toronto on 20 September.