Since 2010, Qualcomm has filed at least eight patents related to indoor positioning, including work touching on Wi-Fi hotspot triangulation and motion tracking via sensors.

FORBES: Microsoft, Motorola, Nokia And RIM To Battle Google Over Indoor Location Market

The U.S. and Japan are taking no chances, however, positioning ships in the Pacific and the Sea of Japan with the capability of tracking ballistic missiles as well as shooting them down if need be.

CNN: Analysis: Amid pending launch, N. Korea only shows half its hand