VIDEO-NBC Nightly News with Lester Holt on Twitter: "Baltimore will soon begin a controversial pilot program using private surveillance planes to help solve and deter violent crime. Advocates tell @GabeGutierrez this could revolutionize policing. Critics

Baltimore will soon begin a controversial pilot program using private surveillance planes to help solve and deter violent crime. Advocates tell

@GabeGutierrez

this could revolutionize policing. Critics warn of major privacy concerns. Watch more:

nbcnews.to/3bsdoGW pic.twitter.com/cSiLbS7c5i
https://mobile.twitter.com/NBCNightlyNews/status/1227185511057379328