I hope Swift is correct. The worst in the last 30 years will likely cause only minor damage. We have learned to make our electronics and electric power grid less likely to be damaged. I don't think we can say with certainty that cycle 24 won't be a million times more distructive than the worst in 30 years, but we don't think our Sun has ever done that, but other suns = stars have produced deadly CMEs = corinal mass ejections. Neil