Veterans groups slam NFL players who kneel during anthem
Analyzing the Effectiveness of Colin Kaepernick's Protest a Year Later
Colin Kaepernick, Biography, Taking the Knee, Activism, Stats, & Facts
Colin Kaepernick Was Mocked and Threatened for Taking a Knee. He's Also Winning.
I Support NFL Players' Protests. But I'm Not Boycotting the NFL - YES! Magazine
Report: Colin Kaepernick will now stand for the National Anthem
Colin Kaepernick bridged sports world to real world
Taking the knee - Wikipedia
Take A Knee: Aspiring NFL players on Colin Kaepernick's protests - BBC News