Shortly before the kickoff of the Minnesota-Illinois college football game at the new TCF Bank Stadium this month, two Minnesota students â?? one male, one female â?? slipped into an unmarked entrance about five minutes apart. They dressed appropriately for the unseasonably warm and sunny day, in short-sleeve maroon-and-gold Gophers attire. And they greeted Amy Barsness, a university official, like an old friend.