Getty ImagesThe Federal Aviation Administration on Monday stated it would continue to split down on unruly passengers, extending the zero-tolerance policy it executed in January. Airline companies have reported more than 500 cases considering that late December, according to the agency.Most of those cases were related to tourists who refused to wear face masks, which both airline companies and the federal government require for business air travel, the FAA said.” The FAA will preserve its zero-tolerance policy at least as long as the federal mask required is in effect.Cases of rowdy guests were on the increase on a per capita basis throughout 2020, according to federal data.