It depends a bit on what scenario you're preparing for. I don't think you're much more likely to need a gun during the 3-day disruption in civil infrastructure

It depends a bit on what scenario you're preparing for. I don't think you're much more likely to need a gun during the 3-day disruption in civil infrastructure described in the article than you are in everyday life. If you're preparing for the end of society as we know it, then you probably want at least three guns: something for small game, a defensive sidearm and a large game/offensive rifle. In situations somewhere between these extremes, a defensive sidearm seems like a sensible precaution to me. Whatever you do, don't get a gun just for disaster situations. If you're not going to put in the time to get proper training and regular practice, your gun could be more of a liability than an asset.