Once again, leave it to hackers to turn something trivial and fun into something useful. A group of French hackers have repurposed a Kinect to become, as they call it, “a gesture recognition system” – ...

Although we have just marked what would have been Martin Luther King Jr.’s 75th birthday, Will Kelley’s encounter at Stroger Hospital [“Bad Medicine,” January 16] is a sad reminder that inequities, in ...