A Mediaevilist on SKYPEI linked earlier to this Breitbart BCAST but I think it is worth another link.
If you can fast-forward (I do not know how to do it) do, as Richard Landes (yes, a Dr, but I have never seen him insist) talks with great sense about the problem with Islam. It seems he thinks it is, as I long have, too young. Imagine Christianity in the 1400s and 1500s. Yup. Not a world I would want to live in.