For the past month, headlines have been dominated by leaked CSIS documents, intelligence sources, fears of foreign interference in Canadian elections and the political fallout of all that. But most Canadians don't know much about how our intelligence community operates. Which agencies do what? Who do they report to? Who can access their information? Why would they release it to the press?

Because this is already shaping up to be the political story of the year in Canada, we wanted to lay out the basics. Here's what you need to know to understand what matters and why.

GUEST: Stephanie Carvin, former national security analyst, Associate Professor at the Norman Paterson School of International Affairs, author of Stand on Guard: Reassessing threats to Canada's National Security

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