At some point during the second week of this year’s spectatorless United States Open, Rafael Nadal took to Instagram with a video.

Maybe as you think, he said, "because as I've the misfortune of an accidental slip on a cow-flop therefore I has the inability of an unborn babe, ...

The decision to create a cybercommand is a major step beyond the actions taken by the Bush administration, which authorized several computer-based attacks but never resolved the question of how the government would prepare for a new era of warfare fought over digital networks.

I was never able to stop the search for the why's and how's of something so senseless as the arms race.