DENVER (AP) — It wasn't that long ago that the NFL didn't want to have anything to do with gambling operations at all because they feared it would lead to a lack of integrity with their games. But as society's view of gambling evolved so did the NFL's. Now, the Raiders are set to open a spiffy multi-billion-dollar stadium not far from the Las Vegas Strip. And this spring the league loosened its gambling policies as they relate to sponsorship opportunities. The Denver Broncos partnered with a trio of gambling companies to put signage and betting lounges in their stadium.