Okay, but that's unfairly ( to police States ) correlating lack of economic development with with increased State power. A more realistic comparison is: would you rather live in London, or Hong Kong ( or even better, Singapore )? ( terrorism is rare in HK, which is basically a police state protectorate of China, and SG is almost certainly a police state ).

You could just as easily say Paris v Warsaw, or Berlin v Shanghai.

TL;DR - comparison with NK is unfair since NK is very hostile to all foreigners and has few attractive economic reasons to live there, it doesn't offer much to potential expats / migrants. But Warsaw or China or HK, or SG have strong policies that seem to have stifled terrorism ( for now ). The fear of "police state == (NK or Burma)" is overblown. You can have strong policies and still have many attractive qualities.

Sorry, I feel the above isn't very clear, but it's the best I could do right now. Thanks