These Are the Most Feared Prison Gangs in AmericaThese Are the Most Feared Prison Gangs in AmericaThis post may contain links from our sponsors and affiliates, and Flywheel Publishing may receive compensation for actions taken through them. Below, we’ll go over some of the most feared prison gangs in the United States:Why Are We Covering This? Why prison gangs form and how they allocate resources is a must-know topic for those in charge of managing prisons and an interesting topic of study for economists, too. However, this gang has risen to be a prominent prison gang in the US. Vice LordsBillion Photos / Shutterstock.comThis is one of the oldest and most influential prison gangs in America.