[Poohbah]

The point is that everything of significant economic value in Canada is concentrated in 11 warhead's worth of coverage.

[RadioAstronomer]

The point is that everything of significant economic value in Canada is concentrated in 11 warhead's worth of coverage.

I am not qualified to comment on the economic viability after such an attack, however the landmass would still be there and usable.

[Ciexyz]

Give 'em credit, they sent us Mario Lemieux (Go Pittsburgh Penguins!)