Re: Not just software
GPS receivers use relativistic mechanics to calculate precision corrections, and can be used to calculate the paths of missiles. Not just Britain, but also the EU and US, should consider potential mis-use by aggressors, and impose regulatory software restrictions on *civilian* receivers, refusing to indicate position when they detect the altitude higher than 18,000meters and speed 1000knots.
Oh, wait. They do. CoCOM countries are now replaced by the Wassenaar Arrangement
https://en.wikipedia.org/wiki/Coordinating_Committee_for_Multilateral_Export_Controls
This applies to Galileo receivers too. And Glonass actually.
Biting the hand that feeds IT
