There is a piece about the new Berlin airport on the BBC news website. Interesting reading and a lesson on how not to do infrastructure when politicians insert themselves into technical decisions rather than those purely on the strategic level

As to priority tags I just give a polite smile whenever a check-in agent makes a little show of adding them to the bag tag. I know they don't matter and they know that too but it's one of those things that are part of the tradition of generally non LCC airlines