acquitted in two killings that he said were self-defense, armed civilians patrolled the streets near the Wisconsin courthouse with guns in plain view.In Georgia, testimony in the trial of Ahmaud Arbery’s killers showed that armed patrols were commonplace in the neighborhood where Arbery, a 25-year-old Black man, was chased down by three white men and shot.The two proceedings sent startling new signals about the boundaries of self-defense as more guns emerge from homes amid political and racial tensions and the advance of laws that ease permitting requirements and expand the allowable use of force.RELATED: Kyle Rittenhouse verdict: Protests continue into weekendAcross much of the nation, it has become increasingly acceptable for Americans to.