Stand Upup News Today

>> reporter: and though some are critical of the pace of change, even baltimore police acknowledge real change will take time. >> it takes like a generation to see that change. you need kids to actually grow up, see what were about, see what we do. >> reporter: trying to overcome decades of mistrust, day by day. tom llamas, nbc news, baltimore. were back in a moment with an important warning for parents about tiny batteries easily swallowed by young children and what to do if that happens. my ...