New security measures in place for Super Bowl

PHOENIX (WPVI) -- The countdown is on to Super Bowl XLIX and it's not just the athletes getting ready.

Security teams are on the scene, deploying the latest technology to keep people safe.

The Super Bowl will have more security than ever this year, with concerns about threats from ISIS and other terror groups.

In an exclusive interview with ABC News inside the stadium, Homeland Security Secretary Jeh Johnson warned of a new stage in the fight against terrorism.

"More lone wolf style attacks. More smaller scale attacks. Our challenges in Homeland Security are evolving. We have more concerns about domestic-based acts of violence, inspired by things people may see or read on the internet," said Johnson.

And while he said there are no credible threats against this weekend's game, they are prepared to respond by any means necessary.

A U.S. Customs Black Hawk helicopter will be part of a fleet of aircraft guarding the Super Bowl from above.

Thirty miles of airspace over the big game are restricted. If any aircraft comes too close, it's the job of that helicopter's crew and others to escort it out.

Also in the air will be F16 fighter jets, just like the ones who protected the skies over last year's Super Bowl in New York.

If the intruding aircraft does not respond, the have been instructed to use missiles to shoot it down.

With so many different kinds of threats, law enforcement is now deploying the latest in technology: high tech scanners to search every item coming into the stadium.

"We're looking for any weapons, any bombs, any weapons of mass destruction," said Ronald Dunn, Customs and Border Protection Manager.

Every little item, even down to Katy Perry's Super Bowl Halftime Show costume gets checked out.

"Katy Perry's stage came in last night. We've got port-a-potties, we've got everything - food, hot dogs, hamburgers, the NFL paraphernalia, jerseys, everything," says Dunn.

For the first time we see what the scanner reveals -- the operator is using x-rays to see everything. He's also able to pinpoint and do close-ups, hunting for any anomaly.

Officers will be wearing portable radiation detectors and there will also be bomb-sniffing dogs.

Police are taking no chances so that everyone can have fun.