stadium with their game faces on. security teams also have a job to do, and they are on red alert for any potential threat. homeland security correspondent jeanne meserve has more. reporter: on sunday, 100,000 people will be in this stadium, 110 million people watching around the world, and that could make this a very tempting terrorist target. sniffing out danger. security is a critical part of this super bowl and an integral part of this stadium. i m wondering if when you re building this stadium, you were thinking about security? well, yes, as a matter of fact. reporter: cowboys owner jerry jones spent millions on security features including vantage points for law enforcement sharp shooters. we ve got a lot of place for snipers in here. reporter: multiple entrances allow faster screening and faster evacuation if needed.
part of this stadium. and i m wondering if when you were building this stadium you were thinking about security? yes. reporter: cowboys owner jerry jones spent millions on security features including vantage points for law enforcement sharp shooters. we have a lot of place for snipers in here. reporter: multiple entrances allow faster screening and faster evacuation if needed. and surveillance cameras record virtually every inch of the venue. but more, much more is being brought to bear. special radiological detection teams like this will be seeking out threats like dirty bombs. there were ten hits at last year s super bowl. all of them were medical isotopes. reporter: when it comes to security, preparing for the game looks a lot like preparing for the war with specialized equipment and personnel from all over the country on hand to detect and deal with a wide variety of possible threats. and on game day, airspace within