Question

Once led a group of protesters who tried to levitate the Pentagon in protest of the Vietnam War.

Answer 1

The correct answer is:

Abbie Hoffman.

Abbie Hoffman, a co-founder of the Youth International Party (Yippies), was one of the organizers of the National Mobilization Committee to End the War in Vietnam. On October 21st, 1967, they proclaimed that antiwar demonstrators would march to the Pentagon and try to levitate it.

The final goal was bringing the military-industrial complex down.