OTTAWA — The final week of the federal election campaign kicked off Monday with security officials warning of social media activity targeting a Conservative candidate. OTTAWA — The final week of the federal election campaign kicked off Monday with security officials warning of social media activity targeting a Conservative candidate. Officials with the federal government's election interference task force, SITE, said Monday they have detected a transnational repression operation targeting Joe Tay, a Conservative candidate opposed to Chinese government policies. The operation features a mock "wanted" poster and disparaging headlines and comments about Tay, the federal Conservative candidate for Don…