question of when someone should call the cops? >> the difficulty is that as people feel suspicion, they're tapping into their biases and it is not a situation in which most people have no bias, the truth is we're constantly bombarded with bias, with prejudice, it's almost like fighting germs to keep these away from us. it takes a certain amount of work so the difficulty is when you have a society as we do which has an incredibly high level of incarceration, extreme involvement of police in fairly everyday things and unfortunately, to their detriment, a at of police have become the first responders for mental health issues, family disputes. it used to be if there was a fight in the schoolyard, this was a disciplinary matter and that turned into a school-to-prison pipeline. well in the same way, just normal disagreements and disputes and curiosities in society have turned into individuals making phone calls because frankly they find the race of the person they're watching to be inherently suspicious. so it's a problem and it does require the participation of everyone not to tap into their biases and to look at what's