Against the backdrop of simmering tensions over race and police violence against African Americans, police departments like the NYPD have introduced a relatively new training program aimed at teaching officers about implicit bias. Special correspondent Charlayne Hunter-Gault reports on the research behind “Fair and Impartial Policing” and whether it’s really effective. Find more from PBS NewsHour at https://www.pbs.org/newshour Subscribe to our YouTube channel: https://bit.ly/2HfsCD6 Follow us: Facebook: http://www.pbs.org/newshour Twitter: / newshour Instagram: / newshour Snapchat: @pbsnews Subscribe: PBS NewsHour podcasts: https://www.pbs.org/newshour/podcasts Newsletters: https://www.pbs.org/newshour/subscribe