There are places where you can be pulled over for no reason, by default, because everyone is being pulled over.
This is the case in Canada, and I don't know anyone who has a problem with it. The police can't pull everyone over and demand that everyone provides a breath sample for alcohol analysis -- but people accept that if you've got 10 police officers stopping cars, it's a heck of a lot safer to stop everybody than to have them jumping into and out of traffic picking out individual cars.
This is the case in Canada, and I don't know anyone who has a problem with it. The police can't pull everyone over and demand that everyone provides a breath sample for alcohol analysis -- but people accept that if you've got 10 police officers stopping cars, it's a heck of a lot safer to stop everybody than to have them jumping into and out of traffic picking out individual cars.