SAN FRANCISCO -- No credible terror threats have been made in regard to Sunday's Super Bowl 50, security experts announced Wednesday, and a three-to-four-mile security perimeter around Levi's Stadium in Santa Clara, California, will be established before the Denver Broncos and Carolina Panthers kick off.
Those were two measurements broached in the Super Bowl security news conference at Moscone Center with the theme for fans being, "If you see something, say something."
"We'd rather fans err on the side of caution," NFL senior vice president of security Jeffrey Miller said.
Others on the dais included Department of Homeland Security Secretary Jeh Johnson, Special Agent in Charge FBI/San Francisco Field Office David Johnson, San Francisco Chief of Police Greg Suhr and Santa Clara Chief of Police Mike Sellers.
The panel was asked, given recent global terrorism events in Paris and San Bernardino, California, if security for this Super Bowl was different from previous years.
"I would say every year is different," said Sec. Johnson, adding that he has been in contact with French authorities after they prevented the attack at a soccer game from being more deadly in November. "The world picture, that is different.
"We have to learn from the events of the past but protect against [potential attacks] in the future."
Security screening for fans at Levi's Stadium, though, will be heightened "significantly" on Sunday, though, with gates opening at 11 a.m.
The league provided stadium security guidelines and tips to fans.
"Fans are encouraged to arrive early to avoid delays. All items carried by spectators will be carefully inspected and potentially not permitted into Levi's Stadium. The NFL strongly encourages fans not to bring any type of bag to the Super Bowl, but if necessary, those outlined below are permissible:
**Bags that are clear plastic, vinyl or PVC and do not exceed 12" x 6" x 12" OR
**One-gallon clear plastic freezer bag (Ziploc bag or similar), AND
**Small clutch bags, 4.5" x 6.5", with or without a handle or strap, can be taken into the stadium with one of the clear plastic bag options.
**Exceptions will be made for medically necessary items after inspection at a gate designated for this purpose.
Prohibited bags include, but are not limited to: Purses or bags larger than 4.5 x 6.5 inches; coolers, briefcases, backpacks, fanny packs, cinch bags/draw string bags that are not clear or exceed 12 x 6 x 12 inches; luggage of any kind, computer bags, binocular cases and camera bags, and large traditional seat cushions that have pockets, zippers, compartments or covers.
Cameras and binoculars will be allowed, but cannot have lenses longer than 6 inches. Camcorders are prohibited.
Other items prohibited in the stadium include:
**Unmanned aircraft systems (drones), radio-controlled model aircraft and other devices that can be operated in airspace
**Containers such as aerosol cans, coolers, bottles
**Laser lights and pointers
**Mace or pepper spray
**Noisemakers and horns
**Selfie sticks, poles, or an missile-like objects