"What the eyes see and the ears hear, the mind believes."
Harry Houdini

The NSA is listening to our phone calls. The FBI is using face detection to catch wanted criminals. Apu at the Kwik-E-Mart is watching Bart Simpson with surveillance video. And now the police are listening for gunshots in neighborhoods across the nation.

Like GPS, radar, and the microwave oven, technology developed for the battlefield has found itself on Main Street. Gunshot detection is another military trickle-down technology that police are using to protect our citizens.

Read more in the newsletter.