In High Noon (1952), the town wants lawman Will Kane, played masterfully by Gary Cooper, to protect them and keep them safe...but when the bad guys come to get even, not one of them is willing to lift a finger to support him. Still, he sticks around and does what he has to do, alone and at great personal risk.
Almost an analogy for what's going on in some communities today, isn't it? Note that in the end here, Cooper throws down their tin star and leaves them to solve their own problems. Maybe today's cops should respond the same way when neighborhoods full of "the usual suspects" stage protests against them every time they do their jobs.