The NFL has officially whitewashed Colin Kaepernick's protest - Vox
The History of NFL Player Protests During the National Anthem - WSJ
3 years after Kaepernick took a knee, the NFL is back to business as usual - Vox
Taking a knee and Trump: the new era of total protest, Kathy Griffin
A Joint Ride-Along Could Help NFL Players and Police See Eye to Eye
All the NFL Players Who Protested Anthems in Response to Trump
Everything you need to know about NFL protests during the national anthem
What Colin Kaepernick Started - The New York Times
The Malcolm Jenkins controversy and why the NFL still doesn't have a policy on kneeling
How NFL and players can end national anthem protests on their terms
Dontari Poe was lone Cowboy to take knee during anthem