Having visited both recently, Copenhagen and Helsinki also have fast and fairly cheap direct train connections into the city centre

@MJeffryes yes it's a dedicated officer, but this may or may not be a faster process than joining the main queue - it took my friend an hour to get through the dedicated queue as it was just ONE dedicated officer

My friend got a new passport last year and the APC slip on her first entry after that had a cross on it and she was sent to speak to an officer, which does suggest that you must have entered the US before with the same passport (this was at JFK in October)

I'm not sure about the official rules but anecdotally, I have never had an issue with taking my ventolin inhaler (in carry on) through any of the US airports/states I've been to (including both Newark and Houston)