Passengers are searched for illegal objects when entering and leaving the United States by the Department of Homeland Security's Customs and Border Protection officers. Follow some of these officers at five airports across the U.S.

Behind-the-scenes look at Toronto Pearson Airport shows how Canada's busiest hub manages millions of passengers and aircraft through snowstorms, tech problems, emergencies, and security issues.

Behind-the-scenes look at Toronto Pearson Airport shows how Canada's busiest hub manages millions of passengers and aircraft through snowstorms, tech problems, emergencies, and security issues.

Behind-the-scenes look at Toronto Pearson Airport shows how Canada's busiest hub manages millions of passengers and aircraft through snowstorms, tech problems, emergencies, and security issues.

Behind-the-scenes look at Toronto Pearson Airport shows how Canada's busiest hub manages millions of passengers and aircraft through snowstorms, tech problems, emergencies, and security issues.

Behind-the-scenes look at Toronto Pearson Airport shows how Canada's busiest hub manages millions of passengers and aircraft through snowstorms, tech problems, emergencies, and security issues.

Ted Stevens Airport in Anchorage, AK, relies on a diverse team to manage operations and overcome weather challenges. This includes Air Traffic Controllers, Mechanics, Police, Firefighters, and many other dedicated personnel ensuring.

Ted Stevens Airport in Anchorage, AK, relies on a diverse team to manage operations and overcome weather challenges. This includes Air Traffic Controllers, Mechanics, Police, Firefighters, and many other dedicated personnel ensuring.

Ted Stevens Airport in Anchorage, AK, relies on a diverse team to manage operations and overcome weather challenges. This includes Air Traffic Controllers, Mechanics, Police, Firefighters, and many other dedicated personnel ensuring.

Ted Stevens Airport in Anchorage, AK, relies on a diverse team to manage operations and overcome weather challenges. This includes Air Traffic Controllers, Mechanics, Police, Firefighters, and many other dedicated personnel ensuring.