I agree that their solution was impractically simple.  As much as I love simple solutions, gun control has no easy, simple, quick fixes like, say, a travel ban might.  If a country bans the use, sale and distribution of firearms, then it's going to be like America's Prohibition all over again and black markets will THRIVE.  Not to say that black markets aren't handy in some ways, but a free market that finds itself with sudden restrictions placed on it is going to find a way to become a freer market again.