A deep freeze across much of the United States has led to treacherous conditions on the nation’s highways. At least five people were killed and many were injured in a massive pileup in Fort Worth, Texas that involved more than 100 cars. Car after car crashed into each other on I-35, which was coated in a slick sheet of ice that made driving treacherous. A careening FedEx truck and trailer slam into the pileup with staggering force, stunning onlookers. #InsideEdition