a spokesperson for the national center for health statistics pushed back a little bit said it's commonly understood this particular database compared in this study undercounts deaths caused by police because for one reason, death certificates don't allow or always note police involvement in that particular death. but, again, bottom line, there really isn't a single comprehensive source of national data for uses of force by police or a standard against any use of force is judged and this suggests why, again, one is needed so the scope of this problem could be fully understand. the study punctuating the national discussion we've all had in the aftermath of high-profile cases breonna tayl. but we also know, guys, that congress so far has failed to pass some major federal reforms. so, again putting this to the forefront of that discussion. jim? >> fascinating study.