Here’s an interesting article about whether there is a future for overland travel given the worlds current political and religious tensions, written by someone who has been doing it since the 80’s.
This link goes to the Financial times website, where it seems you can only view the article once. Trying to view it a 2nd time it asks you to pay so make sure you read it all the first time round.
https://www.ft.com/content/3723348e-2c32-11e7-bc4b-5528796fe35c?mhq5j=e1
