Covering health care needs

In most other countries in the world, government plays a central role in covering health care needs; however, in the United States, the private sector (in the form of employer-sponsored health insurance) serves as the dominant form of medical coverage. For this assignment, discuss the following in 400 words citing all references in APA

Describe and discuss some of the ethical concerns or problems that exist because of the dominant form of employer-sponsored health insurance.
Discuss reform actions that the U.S. government has taken to reduce the ethical concerns or problems that you discussed.
Define the ethical principle of justice, and discuss its role in the U.S. health care system.