One purpose of the USA Freedom Corps will be homeland security. America needs retired doctors and nurses who can be mobilized in major emergencies ... volunteers to help police and fire departments?

• 美国“自由军团”的一个目的是保障本土安全：美国需要退休的医生和护士能够在重大的紧急情况下自愿行动起来，需要自愿者来帮助警方和消防部门；