>> are you seeing more packages being stolen this year? >> absolutely. i think it's becoming quite the epidemic. >> reporter: one survey found 23 million americans have had a package stolen. in this holiday season, maybe the biggest heist yet, with more than 1 billion packages being delivered as more people do their shopping online. >> that one as well. we're going to be running two teams, make sure everybody is vested up. >> reporter: this police unit is trying to catch package thieves in the act. >> you have a flat screen tv? >> what's made to look like a blue ray player. >> someone trying to steal this, they'll be pretty disappointed. >> absolutely. >> there's nothing in here. >> as you see someone trying to steal this, you'll jump out and arrest them? >> correct. >> we have two surveillance teams on packages that are placed at people's doorsteps. the chances of one of them being stolen is possible. >> reporter: lieutenant reiner says it's too easy for thieves