Explainer: Why are we so sleep deprived, and why does it matter?
The problems caused by sleep shortage go beyond tiredness.
By Michael S. Jaffee, University of Florida
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How special ops could exploit information people are already sharing online
U.S. Special Operations Command could use information from social media profiles to profile threats or track the effectiveness of its operations.
Why wearable technology might end the Navy’s fitness test
It's like the old Air Force test, only wearable.
By Mark D. Faram
Fitbits and fitness-tracking devices banned for deployed troops
Announcement is latest to tighten security as device data exposes vulnerabilities.
By Tara Copp, AP