When a second one crashed, the focus quickly shifted.
It is a common attitude in aviation that even pilot error is really a systems fault. Perhaps opposing buttons are too close together, or some control requires attention to be diverted at the wrong time, or pilots are allowed to fly too many hours without adequate rest, or plenty of other things that could contribute to predictable human failure.
It seems obvious that we can predict human failure in current policing. If two incidents with a 737 lead to an indefinite grounding, what's the right number for this situation?
In the case of the airplane, grounding does not create a public safety issue. And there are, of course, many alternatives that can keep the overall system up and running in the meantime. The solution to police brutality requires much more thought.
Of course if all humans are law abiding citizens there would be no issue to begin with. I think every society with lower crime has significantly smaller police brutality issue with some rare exceptions like Hong Kong.
Crime-rates do not correlate with police brutality and mass incarceration.
Canada locks up way fewer people, has way less harsh sentencing than the US, yet Canadian crime rates are not that different from those of the US [0].
It's also really weird to evoke HK in this discussion when the current police response in the US is way worse than anything reported out of HK. Particularly in the context that for the longest time the HK police actually had a rather splendid international reputation [1].
While US police had a "Dirty Harry" like reputation for several decades now, something that's reached its current peak with the whole "blueline" mentality and the glorification of comic vigilantes like the Punisher as a symbol for law enforcement.
As such a whole lot of this is rooted very deeply in policing and incarceration culture and not some countries being inherently "more criminal" than others.
[0] https://youtu.be/wtV5ev6813I
[1] https://www.nytimes.com/2007/06/24/world/asia/24iht-hkpolice...