It's a good question, and it's one on which I'm not an expert. You will hear from other people who are experts on it.
I think the biggest vulnerability is a bit of what I articulated to Mr. Louis, but put slightly differently. As the costs of communicating go down, the ability of people to use small amounts of money to influence our elections is greater than it was before. The idea is that it would be impossible for a person from Russia to put an ad on the CBC or CTV, but it's not impossible for them to put one on Twitter. The permeability of platforms versus broadcast and radio networks is, I think, probably the most serious vulnerability. It's less about where the money is coming from; it's about the ability of money to be put to speech on these platforms.