New York Times:

Experts and documents: the US is years from having a reliable alternative source for time and navigation services if GPS signals are interrupted by adversaries  —  GPS has become essential for modern life, but its satellites and signals are vulnerable to attack.  China is years ahead in developing alternatives.

New York Times:

Experts and documents: the US is years from having a reliable alternative source for time and navigation services if GPS signals are interrupted by adversaries  —  GPS has become essential for modern life, but its satellites and signals are vulnerable to attack.  China is years ahead in developing alternatives.

Source: TechMeme
Source Link: http://www.techmeme.com/240329/p1#a240329p1