Oh dear. Paxman-esque tenacity is prized among TV interviewers, but sometimes - particularly when your line of questioning is a ludicrous and not-so-faintly Islamophobic one - it's better to just let go.
Here Fox News host Lauren Green tries to pin down respected scholar Reza Aslan on why, as a Muslim, he felt capable of writing a book about the life of Jesus. Aslan refers her to his Ph.D. Then he points to 20 years studying the history of religions. Then, admirably, he repeats himself. But Green just won't quit. File under - OK-that's-why-I-don't-watch-Fox.