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    Re: Loran and other alternatives to GPS
    From: Richard Easton
    Date: 2017 Nov 28, 14:30 -0800

    Frank, you make valid points but the decision to shut down Loran was stupid and was protested at the time.
    http://www.cnn.com/2010/TECH/02/08/loran.navigation.shutdown/index.html 
    Here's a 2015 article on e-Loran (part of Richard Langley's Innovation Insights). http://gpsworld.com/innovation-enhanced-loran/.
    Here's a recent article on GPS spoofing http://gpsworld.com/spoofing-in-the-black-sea-what-really-happened/. I think it is a threat today.

       
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