Security is a different beast. At 89 airports throughout the country, screening—what you see when you're lining up as well as whole baggage screening and screening of non-passengers, which is employees essentially, the workers at airports—is conducted by the Canadian Air Transport Security Authority, which is a crown corporation of the federal government. Airports do have a role in security, but it's more in the areas of security that you as a passenger don't necessarily see.
On June 17th, 2014. See this statement in context.