In the interest of time, I'll just say that I agree with almost everything Mr. Fanusie said.
I would add one thing on the artifacts. I think there's relatively good documentation on the ISIS cut of this, which, if you want to call it a tax or whatever, tends to be about 20%. He's right that certain other taxes are as high as 50%, and still other taxes are as low as, I think, 2%. It does vary a lot by good. Some of this is because of religious values and so on. Some of it is just pure profit motive and internal markets at work.