Undercover at a Christian College

There are all kinds of undercover investigations in TV. But did you ever thing you'd see an undercover investigation of Christianity? One secular student decided to "infiltrate" Liberty University, pretending to be a Christian student, and tried to learn all he could about the student body. His biggest surprise? Most of the students were honest Christians who followed Jesus's teachings.

Fellow students knew Roose had transferred from Brown, but few suspected his secular background — and none knew he was writing a book. Once the semester was over, he had to come clean with his new friends.

"It was one of the hardest things I had ever done, because these had become some of my best friends," Roose says. He expected them to feel betrayed — and expected to do a lot of apologizing. Instead, he says, something amazing happened.

"Everyone forgave me — immediately," he says. "It was unreal how quickly their surprise turned to real compassion and excitement."