Governments around the world spend almost two trillion dollars a year on militaries. With only a tiny fraction of that you could blanket regions suspected of h

Governments around the world spend almost two trillion dollars a year on militaries. With only a tiny fraction of that you could blanket regions suspected of harboring Polio with para-dropped doctors. So much for the "knapsack" problem mentioned elsewhere in this thread. But governments around the world care more about shaking big sticks at each other than eradicating polio.