Rastus is only partly right, while we are at the LOW point of the sunspot cycle NOW, (possibly just past it) Sun spot activity is now on an upsurge and is predicted to peak about the middle of 2012 with activity predicted to be somewhat less than the 2000 peak.
http://solarscience.msfc.nasa.gov/SunspotCycle.shtmlI would think that this coupled with the explosive increase in computerization and wireless communications would be more hazardous to our society than anything else. Our society, as proven by Hurricane Katrina and it's aftermath, refuses to accord nature the respect deserved by it's shear power, very few precautions are taken to protect against acts of nature, which have the power of planetary forces behind them. People are STILL living in the flood plains in New Orleans, it is only in the last few decades that people have included "Earth quaking" technology into building designs, People still build large structures with flat roofs in the snow belt, and do nothing to protect buildings in other flood prone areas.
Protecting against something that may never happen is stupid if you fail to protect against things that happen every year or so, like wild fires in Ca. I have very little sympathy for the people who lost their homes, every single year they have wild fires, is it REALLY that hard to figure out that you need to keep a fire break around your property ?