‘While permitless carrying may have some effect on deterring offences like robberies, it is inadequate in the face of grievance and politically driven violence, said Brandon del Pozo, an assistant professor of medicine and health policy at Brown University.
“The deterrence effect of concealed carry only applies to rational actors. And you get to a point in political extremism where you’re not dealing with rational people,” he said...
[C]ities and states where many residents are armed in public can fail to account for the large presence of concealed guns and to plan to provide an accompanying level of screening.
“In places like Utah where there’s going to be a lot of guns in circulation, you have to decide when you’re going to carve out spaces where people are screened for guns,” [del Pozo] added.
“And if you’re a small police department, it’s hard to secure something outdoors. But if you’re coming to a provocative political rally, you need to be screened.”’