the McCarran Internal Security Act of 1950.

It would have been easier for us if you'd posted this with your original post.

Is anyone willing and able to explain the significance of this act of Congress, including its intent and purpose, and how the law was widely considered to be a violation of civil liberties?

These sites explain this act.

http://en.wikipedia.org/wiki/McCarran_Internal_Security_Act

http://writing.upenn.edu/~afilreis/50s/mccarran-act-intro.html

http://www.spartacus.schoolnet.co.uk/USAinternal.htm

The McCarran Internal Security Act of 1950 was a controversial piece of legislation passed by the United States Congress during the early years of the Cold War. It was named after its sponsor, Senator Pat McCarran from Nevada.

The primary purpose of the act was to address concerns about internal subversion and potential communist infiltration in the United States. The fear of communism was particularly heightened at that time due to the ongoing Cold War between the United States and the Soviet Union.

Here's how you can find more information about the act:

1. Start by searching for "McCarran Internal Security Act of 1950" using a search engine such as Google.

2. Look for reputable sources that provide historical context and analysis of the act. Reliable sources may include government websites, academic journals, and books written by reputable historians.

3. Government websites such as the Library of Congress or the National Archives might have primary sources related to the act, such as the full text of the legislation or official reports and hearings.

4. If you prefer books, search for titles that discuss the act and provide an in-depth analysis of its origins, implications, and impact. Check libraries or online retailers for books written by historians specializing in American political history or the Cold War era.

5. Academic databases, such as JSTOR or ProQuest, are excellent resources for finding scholarly articles and papers on the subject. Use keywords like "McCarran Internal Security Act" or "Cold War legislation" to find relevant sources.

6. Once you have gathered information from multiple sources, take the time to critically analyze and cross-reference the data to ensure accuracy and avoid bias.

Remember, understanding historical events like the McCarran Internal Security Act of 1950 requires a comprehensive analysis of different sources and perspectives.