Has the implementation of Medicare actually forwarded the cause for national health insurance or impeded its progress? Discuss.

Medicare was designed to provide healthcare to a specific population at a time when many of the elderly seemed unable to afford healthcare.

Based on your understanding of the topic, answer the following:

Should Medicare be expanded to include not just older Americans and those with certain disabilities, but other people as well? Discuss.
Has the implementation of Medicare actually forwarded the cause for national health insurance or impeded its progress? Discuss.
Cite your sources in your work and provide references for the citations in APA format.