Penn State cancels Proud Boys founder's speech, citing the threat of violence | KGOU
In 1968, Poor Americans Came to D.C. To Protest. Some By Mule | WAMU
A clash of viewpoints - The Timberjay
New Orleans protesters want to ban mule-drawn carriage rides - CBS News
Union protest | Gasconade County Republican
Gov. Chris Christie accuses N.J. teachers' union of 'using students like drug mules' in school elections - nj.com
Man and his mules have walked 13 states in 29 years
After protest, Army launches new competition for robotic mule
Threat of protests, violent escalation stirs fears in Iraq
Why Civil Rights Activists Protested the Moon Landing - HISTORY
In 1968, Poor Americans Came to D.C. To Protest, Some By Mule : The Picture Show : NPR
Police declare riot amid protest at union building; no injuries in area shootings - oregonlive.com
Why Civil Rights Activists Protested the Moon Landing - HISTORY
FACT FOCUS: Gaping holes in the claim of 2K ballot 'mules' | AP News
Black Lives Matter and the case for reparations: Commentary - CSMonitor.com
In 1968, Poor Americans Came to D.C. To Protest, Some By Mule : The Picture Show : NPR
40 acres and a mule: How the first reparations for slavery were reversed - The Washington Post
