Source - NFL planning to allow social justice decals on helmets - ESPN
NFL supports social justice and local communities with 'Inspire Change' initiative - AS USA
I Shall Call It … Mini-Me
Several Chiefs to Make Their Voices Heard on Thursday Night with Custom Helmet Decals
Illinois alters helmets to promote social justice
N.F.L. Will Allow Six Social Justice Messages on Players' Helmets - The New York Times
NFL brings back social justice helmet decals, end zone stencils as part of Inspire Change platform - ESPN
NFL Sunday: Here's how teams highlighted racial inequality in the US