trolls trolls

Some colleges and police departments are starting to use software that scans social media to identify local threats, but most tips still come from members of the public. Ikon Images/Getty Images hide caption

toggle caption
Ikon Images/Getty Images

Awash In Social Media, Cops Still Need The Public To Detect Threats

  • Download
  • <iframe src="https://www.npr.org/player/embed/388449799/388520677" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript