For the quantum entanglement stuff: no, there is nothing going faster than light. "They could be seen" means "some journalist sees it". This is not what it is. Both photons travel at the speed of light. Period.

The first article is indeed interesting. I didn't know about it and it is right. Thanks for sharing. There are cases where light can indeed be slower even in the vacuum.

Actually, special relativity says that there is a speed limit, nothing more.