Here's how it would work.
Whenever you want to start your vehicle, you must exhale towards a small sensor embedded in the steering column or side door trim. Then you would get a quick pass/fail reading on the alcohol content of your breath.
When you have folks like THIS GUY with FIVE previous convictions still on the streets causing ruckus and damage, its time to take a new look on how DUI's are handled.
This Independence Day weekend make sure you don't drink and drive or drink and boat. Beware, the Game Wardens will be out in full force looking for violators.