You're looking at it through the lens of getting a teaching job. I was responding to marvs comment that it seemed a bit much/ harsh.
DUI laws were put in place, and have been getting stronger, to curb driving drunk fatalities. Not to keep some people out of teaching jobs.

"If it turns out that President Barack Obama can make a deal with the most intransigent, hard-line, unreasonable, totalitarian mullahs in the world but not with Republicans? Maybe he’s not the problem."