Walking while black

Slate has an article by Daniel Politi about police behavior in Michigan:

It may be freezing in Pontiac, Michigan, but, if you’re a black man out for a walk, it’s probably best to keep your hands out of your pockets or else risk getting stopped by the police because your actions make people nervous. Brandon McKean posted a difficult-to-believe video (above) on his Facebook page and YouTube that shows his interaction with a white police officer who briefly detained him on Thanksgiving while he was out for a walk.
“You were walking by … you were making people nervous,” the white police officer answers when McKean asks him why he was stopped.
“By walking by?” an incredulous McKean asks.
“Yes, they said you had your hands in your pockets,” answers the officer, who also begins to record the encounter with his phone.
“Wow, walking by having your hands in your pockets makes people nervous to call the police when it’s snowing outside?”
“Yeah,” the officer says calmly.
Then the officer keeps going, as if he’s still suspicious of something: “What are you up to today?” McKean is clearly fed up: “Walking, with my hands in my pockets.” Then the officer wonders: “Is it an inconvenience talking to me right now?”
“Hell yes,” answers McKean, noting “the whole police situation going on across the country.” But the officer defends his actions: “We do have a lot of robberies, so I’m just checking on you.”
"Just got stopped walking BECAUSE MY HANDS WERE IN MY POCKETS....... POLICE STATE," McKean wrote on Facebook.

Rico says that he and two friends, nearly fifty years ago, had the same thing happen when, very late one cold night (yes, yes, even in Northern California), they asked some cops what time it was, but the cops, after pulling guns on us, merely told us it was time to 'go home'...