Obviously, sir, the questions for Public Works, I respectfully submit, would probably be best directed to Public Works.
I think the benefit of digital ads, and I'm speaking just for Facebook, is this idea that you will be able to have a very good sense of whether people have engaged with those ads.
John Stackhouse's book has been invoked in the past, and I think he describes it quite well in the book, which is to say that, before, you would presumably put an advertisement somewhere and not really have a sense of whether that was reaching your intended audience. The impressive nature of digital advertising is that you will have much greater certainty that you will be able to reach people.
As for the Government of Canada's spending plans, unfortunately, I am not in a position to answer.