I read that they are narcotics detectives, and that the “police van” was an unmarked minivan. So if they are undercover officers that could explain why there are no pictures of them in the press (as an alternative to your theory).
That’s probably true, but I still think if they were white, this media today would be climbing over itself to get photos of these guys to further exploit their “white cops are evil” campaign and they would have gotten the photos.
To this day, they are still harassing the crap out of the undercover white cop who put Eric Garner in a choke hold even though he was trained to do that and was even ordered to do that by his black female Sargent. Over 3 years later, and they are still posting his photo, what his name is, where he lives to all but ensure he continues to get death threats.
And what really ticks me off about that case, is that the New York city council demanded cops arrest people who sell illegal cigarettes, because as Ann Coulter says, “Nothing comes between a liberal and taxes”, so when the cops did, what did the NYC council do? Incredibly they took to the streets and protested! Protesting something THEY made the cops do! As if cops don’t have enough problems busting people for drugs, the NY city council has them going after a guy selling a cigarette for a quarter.
http://observer.com/2014/12/city-council-members-block-traffic-to-protest-eric-garner-decision/