America is lagging, and the PTBs and FJB clowns are dropping the ball as they rush us into WWIII...and while the military aspects are important, the risks to GPS apply to commercial and civilian dependencies as well.
I think eLORAN makes sense. It is simple. Russia is using LORAN-C in Ukraine, not wanting to risk GPS jamming.
https://pacmar.com/article/bringing-back-loran-the-case-for-reviving-an-obsolete-navigation-system/In my pre-GPS days we used inertial guidance (SINS)...and improved materials and technology have reduce error deviations down-range significantly, subs still use inertial when submerged...once able to peek at the surface they can re-calibrate with GPS and have automated and manual celestial as well should GPS be kaput.
For ship and sub there is also radar, sonar...IR/thermal imaging...lots of tools to help determine position and surroundings, contours et al. Modern aircraft also have inertial and celestial back ups.
eLORAN is low cost, more accurate than old C variants and easily re-calibrated.
We in the interior land-dwelling creatures need to rediscover our compass and map plotting skills and celestial identifiers.
