The US is one of the few industrialized countries that do not have a centralized health insurance system. Development of a universal health care program in the US may be difficult because taxes are too low to finance it. But the federal government has become more involved in all aspects of health care. Health insurance plans are widely various, but most Americans depend on employ-sponsored health insurance. Health maintenance organization are becoming popular, and many companies have carried out their own programs to insure employees . The government has provided supplementary health care for those who do not have access to private health insurance by the establishment of Medicare and Medicaid. Seventeen percent of the non-elderly population is uninsured, and has severely limited access to health care. The government is increasingly burdened by the health care crisis, and needs to become invovled in heallth care policy-making on the federal lever. 美国是当今世界极少数工业化的国家之一,却缺少一套集中化的卫生保障体系。由于税太低,资金不足,在美国实现医疗保健普及化的目标存在困难。联邦政府已经更加深入管理医疗保健各个方面的问题。卫生保障计划越来越多样化,但是大部分美国企业依赖员工式赞助的医疗保险制度。医疗维护组织愈来愈受到大众青睐的同时,许多企业执行自己的公司计划,以保障员工利益。政府也制定了医疗保健补充条例,专门适用于个别无法享受医疗保险和医疗援助的人群。还是17%的人没有得到医疗保障的,且相当难享受医疗保障。医疗保障危机慢慢地加重了政府的负担,而政府开始参与联邦制医疗保健政策的制定也是必须的。