They are sitting in an interview setting. Now i dont know who set up the interview but it still stands. If you are engaged in a conversation with a person and they something completely incorrect, then it is understandable to correct the error. Now sure Bill can be a dick a lot of the time. But if someone where to come to me and say they think the world is only 5000 years old. You can bet your life that i would argue against them because it it 100% without a doubt incorrect. Now i understand everyone has a right to say and believe in whatever they like, but for a politician to say something like that...its just incorrect. If people are going to be over sensitive to having their opinions challenged then you're not going to last very long in this world.