I went through these Noam Chomsky lectures too quickly to post individually, and a few of them are in fact the same speech with a different angle.
Dershowitz vs Chomsky debate Israel at Harvard
Noam Chomsky on the State-Corporate Complex: A Threat to Freedom and Survival
Noam Chomsky: “The Emerging World Order: its roots, our legacy”
Who Owns the World? Noam Chomsky on U.S.-Fueled Dangers, from Climate Change to Nuclear Weapons