OoOoH this was easy
Copyright Disclaimer Under The Section 107 of the Copyright Act 1976, allowance is made under 'fair use' for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is permitted by copyright statute that might otherwise be infringing. Non-profit educational or personal use tips the balance in favor of fair use.
...
https://www.youtube.com/watch?v=havvinzY7CU