(CBS) This story was originally published on Nov. 22, 2009. It was updated on Aug. 6, 2010. Every medical study ever conducted has concluded that 100 percent of all Americans will eventually die. This comes as no great surprise, but the amount of money being spent at the very end of people's lives probably will. Last year, Medicare paid $55 billion just for doctor and hospital bills during the last two months of patients' lives. That's more than the budget for the Department of Homeland Security, or the Department of Education. And it has been estimated that 20 to 30...