Mueller's parents open up about their daughter, a U.S. aid worker who was captured by ISIS in 2013. 
 
 Two Catholic nuns were found dead in their Mississippi home on Thursday. 
 
 A man being chased by police after breaching a security gate at Omaha's Eppley Airfield airport Thursday night, proceeded to strip down to his boxer shorts, steal a truck on the runway and ram it into the nose of a Southwest Airlines aircraft, authorities 
 
 Sara Haines reports the buzziest stories of the day in "GMA" Pop News. 
 
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 The country's midsection continues to feel the effects of the 6.2-magnitude earthquake as the search for survivors continues. 
 
 The "Dirty Jobs" host offered to buy a beer for Jimmie Cox, who dove into murky water to fix a broken water pipe 
 
 The new stadium for the Minnesota Vikings has a fixed roof made of acoustically reflective material that experts say could raise noise to ear-damaging levels. 
 
 Experts Warn New NFL Stadium Could Be Bad for Your Hearing 
 
 Experts Warn New NFL Stadium Could Be Bad for Your Hearing 
 
 Experts Warn New NFL Stadium Could Be Bad for Your Hearing 
 
 The Minnesota Vikings will kick off its first pre-season game this weekend at a brand new stadium that is already raising questions about its noise level. 
 
 The U.S. Bank Stadium in Minneapolis, where the Vikings will face the San Diego Chargers Sunday, hosted a Metallica concert last week that left many of the 50,000 attendees complaining about the noise levels. 
 
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 "I think I've suffered long-term hearing damage," one concertgoer said on Twitter. "My ears are still ringing," another tweeted. 
 
 View gallery Record Noise Levels Expected at Minnesota Vikings' New Stadium (ABC News) 
 
 The stadium claims to have the “largest, transparent ethylene-tetraflouroethylene (ETFE) roof in the nation,” according to its website. 
 
 According to the stadium, which is owned and operated by the Minnesota Sports Facilities Authority, the ETFE roof “should make the stadium louder.” ETFE is described as a “more acoustically reflective material.” 
 
 Minneapolis-based audiology specialist Dr. David Geddes told ABC News that noise levels can reach up to 105 decibels inside the U.S. Bank Stadium, a level 10 times louder than other NFL football stadiums. 
 
 Geddes says any loud noise over 85 decibels could be potentially harmful if a person is exposed to it for a long period of time. 
 
 "The thing to remember with noise exposure is it's cumulative," Geddes explained. "So after several decades of attending concerts, football games, you can wind up with a permanent, noise-induced hearing loss." 
 
 Kansas City's Arrowhead Stadium boasts the world record for the loudest crowd roar at a sports stadium with 142.2 decibels. To put that number into perspective, it is just over two decibels louder than a jet engine at takeoff. 
 
 The Vikings plan to distribute free earplugs at Sunday's game. 

 MINNEAPOLIS (WCCO) — Vikings fans may want to listen up — hearing experts are asking fans to take precautions to protect their ears when they go to major events at U.S. Bank Stadium. 
 
 “The noise tended to just bounce all around,” Christian Burres, from Plymouth, said. 
 
 Burres said he had a great time going to the Luke Bryan concert at U.S. Bank Stadium Friday, but said it was the loudest venue he’s been to in Minnesota. 
 
 “That was by far the loudest,” Burres said. 
 
 On social media other fans pointed out the stadium’s loud acoustics. The day after the Metallica concert at the new stadium, one Facebook user wrote “my ears are still ringing.” 
 
 “Stadiums for a long time have had noise levels that can be damaging to your hearing,” Dr. David Geddes, an audiologist for HealthPartners, said. 
 
 U.S. Bank Stadium could be the loudest stadium Minnesota has ever seen. The Minnesota Vikings website says the roof on U.S. Bank Stadium features more “acoustically reflective material” and “should make the stadium louder” than the Metrodome. 
 
 A local radio station measured the sound during the soccer match at U.S. Bank Stadium reaching over 105 decibels. HealthPartners says that is ten times louder than the volume at an average NFL stadium. 
 
 Dr. Geddes says any sound over 85 decibels can damage tiny cells inside the ear. Even if your ears stop ringing after a loud event, you could have problems down the line. 
 
 “It’s not necessarily that you go home with permanent hearing loss after one-time visit, but over an extended period you may have noise-induced hearing loss,” Dr. Geddes said. 
 
 Dr. Geddes says it’s important to wear ear plugs during loud games. 
 
 The Minnesota Sports Facilities Authority said ear plugs will be available at guest services for events at U.S. Bank Stadium. 
 
 Dr. Geddes also recommended downloading an app for your smartphone to check decibel levels — you can find a list of popular apps here.
– The NFL may have a new loudest stadium, but how loud is too loud? Good Morning America reports the noise at the new US Bank Stadium in Minneapolis is already making news, and it hasn't even hosted a Minnesota Vikings game yet. At a recent soccer match—a soccer match!—the noise in US Bank Stadium was measured at 105 decibels, according to WCCO. That's 10 times louder than some other NFL stadiums. And attendees at a Metallica concert held last weekend at the stadium took to social media to talk about the noise level (possibly because they couldn't hear each other speak). "I think I've suffered long-term hearing damage," GMA quotes one fan. The stadium boasts the "largest, transparent ethylene-tetraflouroethylene roof in the nation." The Minnesota Sports Facilities Authority says that "should make the stadium louder" because the material is "more acoustically reflective." A hearing specialist notes the level of noise in the Vikings' new stadium could be dangerous, especially to people who make a habit of attending games or concerts there. The Vikings will be handing out earplugs before their first preseason game at US Bank Stadium on Sunday.