You are using an older browser version. Please use a supported version for the best MSN experience.

Here's how customs searches 1 million mail packages a day for drugs and counterfeit goods.

Just like arriving international passengers have to go through customs, so does international mail. And Customs & Border Protection searches all of them for illegal goods like counterfeit items and drugs. Take a peek inside America's largest mail room.

UP NEXT

UP NEXT

image beaconimage beaconimage beacon