Not to forget: "Where are the rest of these?" https://en.wikipedia.org/wiki/Safeguard_Program#/media/File:SRMSC_MSR_HAER_ND-9-B.jpg https://en.wikipedia.org/wik

Not to forget: "Where are the rest of these?" https://en.wikipedia.org/wiki/Safeguard_Program#/media/File:SRMSC_MSR_HAER_ND-9-B.jpg https://en.wikipedia.org/wiki/Safeguard_Program#/media/File:... Or is there another option now, with the necessary coverage? From space, via SAT? Some sort of 'dent-detection' in the electromagnetic field instead, be it natural, or man-made?