Experts are warning America has become too dependent on China for its medicine -- everything from painkillers, to antibiotics, and even aspirin can all be sourced back to a country the Department of Defense considers an adversary. The Food and Drug Administration estimates that at least 80 percent of the active ingredients found in all of America's medicines come from abroad – primarily China. "Imagine if China turned off that spigot," said Rosemary Gibson, author of "China RX: The Risks of America's Dependence on China for Medicine." "China's aim is to become the global pharmacy to the world -- it...