Look, the question you raise is obviously the biggest question, because they're becoming bigger and the landscape is changing. They're essentially running countries now.
There isn't a simple answer. Obviously, I've suggested penalizing them and imposing fines and sanctions, etc. CRTC perhaps has an answer in terms of how it deals with broadcasting in general.
A lot of these social network providers also have offices here in Canada. They're running their business here in Canada, and as well there are heads, CEOs, here in Canada, so that may be the angle to enforce our laws.