How Colin Kaepernick became a cause for activists, civil rights groups and others
Taking a knee: Why are NFL players protesting and when did they start to kneel?, The Independent
The Awakening of Colin Kaepernick - The New York Times
Colin Kaepernick a hypocrite as he ends national anthem protest now that he needs a new job – New York Daily News
The Deafening Silence of Colin Kaepernick - The New York Times
U.S. national anthem kneeling protests - Wikipedia
Fame offers Kaepernick and fellow athletes a platform for dissent
Controversy continues over 49ers' Colin Kaepernick decision not to stand for anthem - CBS News
US Soccer: Players Must Stand During National Anthem
Is the national anthem even necessary?
By Taking a Knee, Is Colin Kaepernick Actually Standing Up For First Amendment Rights?