Absolutely not; we don't need a warrant to speak to Canadians. What we need is a suspicion that leads us to believe they might present a danger to public safety. We don't have lawyers because this isn't a criminal investigation. We talk to people; we can't arrest them or put them in prison or file criminal charges against them. What we can do with them is talk to them. In those circumstances, we don't need lawyers.
On May 11th, 2010. See this statement in context.