Scientists agree it’s a matter of time before a similar solar storm hits Earth again, and with today’s dependence on power and sophisticated electronics, society is more vulnerable to electromagnetic disturbances — whether from the sun or human-made high-altitude nuclear blasts. “Those telegraph wires and those telegraph tappers are about 1,000 times more resilient than the SCADA systems, the electronics in a laptop or our computer systems… – San Antonio Express New Photo: Stephen Craven