I may be wrong but seeing how things are transpiring pretty much everywhere, it's an issue of profit margins, the U.S. government is an expanding black hole of excess and ego and greed, not satisfied with a paycheck or taxpayer money, things that used to get funding now is being looked at from a vantage point of the needful vs the needy and corporations are pretty much responsible for it as their insatiable glut for more expands exponentially. the problem is that other countries and foreign corporations are following suit and yes, you can blame the U.S. partly. but these things don't happen by themselves so pretty much everyone has some blame on them. Humans are still biologically part of nature but our minds and emotions have been usurped by our own ego and so we don't follow survival of the fittest, it's more along the lines of survival for the dollar. I'd like to add that in nature survivability of other lifeforms that are incapable of fending for themselves is pretty much a foregone conclusion and ends up filling the bellies of predators, I think we're pretty much the only species that doesn't prey (as a food source) on them, although their illness is preyed upon through the dollars.