I'm in Australia, random breath tests have been around for many years and they have helped a lot with a culture of getting drunk and driving home.

What overly broad reasoning. Flip it around and apply it to other things that you could do to hurt people and you can apply that reasoning to all parts of your life.

If that's not the impression you want to give, you might want to reconsider your approach.

Enjoy it while the delusion of being right lasts!

Where did you get the idea that driving is a human right?

In the US, for probably 90% of the country there is no easily accessible public transit, cabs are financially infeasible for the working class, and attempting to walk down roads without sidewalks is very dangerous, and outright illegal for interstates and some highways. For a large percentage of the population, taking away the "privilege" of driving would entirely remove their right to move about the country freely.

When there is no alternative to driving to reach a grocery store, your place of employment, etc. can it really be considered a privilege?

It's a far easier problem economically to focus on those who can't afford a car than to build out public transportation networks. Perhaps in the future when there are driverless cars everywhere, driving could be a privilege. As it is now, and for the foreseeable future, driving is a requirement for many americans. I moved to a city with public transit to avoid driving, but not everyone has that option, and it's important to remember that.

That's a very shortsighted statement. The costs of universal driving in terms of property damage, human injury and death, unproductive time spent commuting, traffic, inefficient urban design, resource expenditure, road maintenance, etc. are significantly higher than those of public transit.

And if you don't believe me about people who simply can't afford to drive, what about people who physically can't drive, like the blind? Or people who physically shouldn't drive, but are sometimes forced to do so, like people who suffer from narcolepsy or get intermittent seizures?

The only reason people don't have the option of avoiding driving is because of poor public infrastructure decisions and in some cases poor personal decisions when we can easily afford to do otherwise. Why do we make these poor decisions? Because we think driving our fat asses around in 5000-pound behemoths is a "right" that needs to be accomodated everywhere, but walking and cycling aren't. It's not science fiction--people managed to do without cars for thousands of years.

Setting all of that aside, if you're operating a motor vehicle that could easily kill people out of inattention, you're putting the public at risk and you have a responsibility to demonstrate you can do so competently and responsibly. Not being killed by cars is a more important right.

Mass breath-testing programme always get a few complaints, but I think they'd get a lot more if people realised how few drunk drivers are caught, or if police were rude. Blowing into a tube for X seconds is invasive, but sobriety tests (walking a straight line, touching your nose, etc) feel weirder to me. (I realise that in both US and UK neither of these can be done unless they think you're drunk, and GP post was talking about tests done with no suspicion of drunkeness).