Ten days before Kansas City hosted its first World Cup game of the summer, a shooting took place near England’s base camp in the city, raising the issue among World Cup fans of gun safety in the United States. Local officials were quick to downplay concerns for World Cup travelers, only for an Uber carrying fans to Argentina’s opening match against Algeria at Kansas City Stadium to be caught in a shooting spree a few days later.The issue of gun violence is an unavoidable one, with guns far more prevalent in American society than elsewhere in the world. That’s in part because, in the U.S., the Second Amendment guarantees every American’s right to bear arms — and with it being up to individual states to establish laws around gun ownership and gun safety, the issue remains a hotly debated one nationwide.So, as we enter the knockout phase of the tournament and fans make plans to move to different cities, what should they know about gun safety across the 11 U.S. host cities?Are guns allowed in World Cup stadiums?No, guns are strictly prohibited in World Cup stadiums.This is true even at stadiums in states where gun laws are more relaxed because the stadium operators govern what is allowed on what is their private property. It’s worth noting that all NFL venues — which are hosting most World Cup matches this summer — have a strict ban on guns.As for FIFA, the governing body also lists weapons as part of its “prohibited items policy,” which includes “explosives, detonators, work tools, helmets, lighters, matches, smoke bombs, spray cans, etc.” The policy states that anyone found to be carrying any of these items “may be refused entry to the stadium.”Security at World Cup venues has included metal detectors and bag scanners (Al Bello/Getty Images)What about in other World Cup venues, like fan fests?The rules are almost identical for all official FIFA fan festivals: no guns or weapons of any kind. In New York and New Jersey’s fan zones, anything that could be used as a weapon is prohibited from entry. Kansas City is more explicit, making it clear that all firearms are prohibited from its official fan festival.It’s worth mentioning here, too, that private establishments can enforce their own rules — and some states establish strict rules against carrying a firearm into any bar, restaurant or facility that serves alcohol, even if a person is otherwise legally allowed to carry a gun.What are the laws around carrying guns in U.S. host cities?Every state has its own gun laws, and the stadiums are spread across nine states (Georgia, Massachusetts, Texas, Missouri, California, Florida, New Jersey, Pennsylvania, Washington). You can also add Kansas and New York, which share hosting duties with Missouri and New Jersey, respectively, meaning fans may be traveling between both states for matches.Even in states where a person is legally able to carry a gun, there are areas where guns remain prohibited by federal law, including federal buildings, courthouses, and airports.Here is a general rundown of gun-carry laws in states hosting World Cup matches: