After Trump Blasts N.F.L., Players Kneel and Lock Arms in Solidarity - The New York Times
Can NFL Teams Legally Require Players to Stand for the Anthem? - Sports Illustrated
Students' Right to Protest the Pledge and National Anthem: Advice for Supporting Young People
Is Hate Speech Protected by the First Amendment?
Timeline of NFL protests during the national anthem – KIRO 7 News Seattle
High school players' national anthem protests prompt range of reaction
Texas school kids join national debate on protest during anthem, pledge
No, Schools Can't Punish Student-Athletes for Taking a Knee (Opinion)