Rising tariffs tempt some citizens to go abroad to buy luxury goods, where items can be up to 40% cheaper, then bring them home without paying the proper duties. A traveler returning from Italy claims she has a $50,000 watch belonging to her brother.

A passenger arriving from Cairo has brought some extra carry-ons that interest officers; an American fashion designer returning from Paris fails to declare nearly $20,000 worth of luxury goods; a bag of snails from West Africa raises suspicions.

Officers grow suspicious of a traveler who is about to board his second flight within 24 hours to and from Canada. After closer inspection, a traveler claiming to have arrived in the U.S. for a solo vacation appears to have lied on his visa application.