Col. Carlyle “Smitty” Harris and his wife, Louise, will have been married 60 years on Dec. 5. "Tap Code: The Epic Survival Tale of a Vietnam POW and the Secret Code That Changed Everything" tells his ...

Android’s Now on Tap feature, Google’s melding of image recognition and machine learning in an app, was, at least at first, a lot more impressive in theory than in practice. Sure, you could use it to ...