Sunday's Super Bowl is expected to be the coldest on record with temperatures in the low single digits around the 5:30 p.m. CT kickoff. Factor in the winds of around 10 mph, and it will feel like it's well below zero. Granted, the game is indoors, but officials here are warning those who will attend Super Bowl LII at U.S. Bank Stadium to be prepared - especially as the tightened security measures could lead to longer waits to get inside. "This is very important for us to make sure that people who are coming here and visiting for the Super Bowl to please dress appropriately," NFL security chief Cathy Lanier said this week. "Even if you are only out for a few minutes, it can get quite cold here. You need to dress in layers, hats, gloves, scarves covering your extremities (and) comfortable shoes or boots." Sanj Kakar, a hand surgeon at the Mayo Clinic who frequently treats those suffering frostbite, had another suggestion: limit your alcohol intake because that warm feeling is very