Following the arrest of an airport employee that tried to smuggle guns onto an airplane in Atlanta, CNN has revealed a lack of screening for airport employees. Most airport employees are screened daily but workers like mechanics, baggage handlers and cleaning crews are under no federal requirement for screening.

Only two of the nation’s major airports require all tarmac workers to go through security: Miami and Orlando. Security at the Miami airport reported confiscating 209 employee badges for security violations last year alone. The airports with the weakest guidelines cite budget shortages as the main reason for their leniency.