provide a lower risk of heart attack and stroke, than a rival medication, ibuprofen, sold as advil and motrin. >>> and with the super bowl now just days away, a startling discovery. a lot of counterfeit tickets to the big game are being sold. so, is there any way to catch them? abc's gio benitez, now, with the secret and the warning. >> reporter: fans, fireworks, and tonight, with the super bowl just days away, fakes. bogus tickets seized overnight. they look so real, investigators believe they could've gotten someone into the stadium sunday. there was some really advanced technology there to make these tickets. >> some of the most advanced counterfeiting techniques i've ever seen. >> reporter: take a look. this is a real super bowl ticket, side-by-side, with the fake one. they have the same artwork, the same foil-embossed logo, even an identical diamond-shaped watermark. so, how do you tell the difference? >> on the back of the ticket there's a graphic that's printed with something called thermochromic ink. when you apply heat by rubbing it with your thumb or your hot breath, it will disappe