A Columbia political science professor has been charged with having a sexual relationship with his 24-year-old daughter, the Columbia Daily Spectator reports. David Epstein, 46, was charged Thursday with one count of third-degree incest. Police told the Spectator that the relationship appeared consensual. Epstein is currently on administrative leave. According to the New York Daily News, Epstein and the woman had a three-year sexual relationship and often exchanged "twisted text messages." The Spectator reports that Epstein is married to another Columbia political science professor, Sharyn O'Halloran, though a recent update to his Facebook page says he is single. The couple...