Richard Fadden — Canadian Public Servant

Richard B. Fadden, also known as Dick Fadden, is the National Security Advisor to the Prime Minister of Canada and an Associate Secretary to the Cabinet. He had previously served as the Deputy Minister of National Defence from 2013 to 2015. From June 2009 to mid-May 2013, he was Director of the Canadian Security Intelligence Service. He was previously the Deputy Minister of Citizenship and Immigration Canada, from 2006 to 2009... (wikipedia)

There's still a lot of Americans who think that those who perpetrated the attacks on 9/11 came from Canada, which is absolutely and totally incorrect.
Before 9/11, absolutely, there were concerns about terrorism; but the world fundamentally changed.
The North Koreas of the world are trying very hard to acquire the material they need to acquire nuclear weapons, as is the case with Iran.
We've always had to worry about the electrical grid and nuclear facilities, and they remain a concern; but cyber-terrorism, you know, which is a word that you hear more and more, I think is a reality.