Reading pile

Wow, I have a lot of things on my Kindle. And I'm adding more:

• The roots of the Flash Crash of 2010 go back a lot farther
• Chicago's yellow night sky (see below) may be turning...black?
• Via Schneier, an investigation of an insecure voting machine by Virginia's elections board.

Back to debugging...

Photo: Chicago at night. Note the yellow-orange sodium vapor lamps.