intimidating activists in Canada

"After CSIS arrived at his front door unannounced and uninvited, Ken Stone decided to speak out in the press against what he sees as a campaign on the part of the spy agency to "intimidate" activists."

"The visitors, Stone said, told him that the Canadian Security Intelligence Service [CSIS] was aware of the editorial and its mention of his October 2011 visit to Iran to attend a conference on Palestinian human rights." (thanks Amir)