Vietnam War: The <a href="https://en.wikipedia.org/wiki/House_Un-American_Activities_Committee" id="mwAUU" rel="mw:WikiLink" title="House Un-American Activities Committee">House Un-American Activities Committee</a> begins investigations of Americans who have aided the <a href="https://en.wikipedia.org/wiki/Viet_Cong" id="mwAUY" rel="mw:WikiLink" title="Viet Cong">Viet Cong</a>. The committee intends to introduce legislation making these activities illegal. Anti-war demonstrators disrupt the meeting and 50 people are arrested.