are often not fully investigated or enforced so that creates imbalance. speaking of that we have data on these killings of officers nationally. we don't have uniform data on police involved shootings. do you think it will be better to prevent both problems if we had uniform data? >> we have to be real careful. there's an extreme to this conversation not real helpful and you already hear it in different places on the internet about african-american crime and the issue we're dividing people up here. i don't think making an equivalent between the potential murder of a police officer and unintentional murder of somebody or unintentional killing of somebody trying to make an arrest are equal. i don't think that's helpful and not helpful to contextualize the police are different than other people, they doing different work. ordinary people don't do car stops and deal with people desperate and don't deal with the level of mentally ill armed