I’m reading David Carr’s junkie memoir “The Night of the Gun.” He talks about the carefully acquired skill of shooting up cocaine — how the goal is to get as high as possible without overdosing. This is roughly the same goal of NASCAR. Only creeps watch just for crashes. But fans want to see drivers mash the gas and swap paint — to push all the way to the edge of a terrifying wreck. The problem is, going that fast, sometimes you get a terrifying wreck. The tally this time is 28 injured. I’m always surprised it isn’t worse.