The Indochina war spilled over into the streets of the USA

Most of the New Left grew out of the US involvement in Indochina. The following is an example

Here at home, the protest against the Vietnam War was beginning to wind down, since Nixon was withdrawing troops and ending the draft. However there were still our own radicals, such as the Weathermen or Weather Underground, as they called themselves, who were planting bombs by now.
A new group emerged, the Symbionese Liberation Army or SLA. They kidnapped Patty Hearst, the daughter of the famous newspaper mogal, William Randolph Hearst.
On August 21, 1973, they issued a Declaration of Revolutionary War & the Symbionese Program:
“The Symbionese Federation and The Symbionese Liberation Army is a united and federated grouping of members of different races and people and socialistic political parties of the oppressed people of The Fascist United States of America, who have under black and minority leadership formed and joined The Symbionese Federated Republic and have agreed to struggle together in behalf of all their people and races and political parties’ interest in the gaining of Freedom and Self Determination and Independence for all their people and races.”
They also robbed some banks and were trying to form an armed uprising. They didn’t last long, but it was clear that radicals had brought the war to the streets of America.