It seems like common sense that we don't want truck drivers and train operators falling asleep on the job. These workers operate massive machines, and often work long, irregular hours. One wrong move can cause catastrophic train and truck accidents. But last week, President Trump and the Department of Transportation withdrew a proposal to test truckers and train operators for obstructive sleep apnea (OSA), a sleep disorder that is becoming increasingly common and has led to a recent uptick in trucking accidents. Perhaps somewhere there is an explanation for why this proposal was withdrawn that makes sense but I don't know what it could be.