All of the laws in the world will not stop someone who drinks and drives if they so desire.
What is more useful are victim's rights laws. If a drunk slams into you, they need to pay the ultimate price both legally and financially. Many states have adopted these types of laws and that is a good thing. People need to be held accountable for their actions.
As JoePrim mentioned, rights lost are seldom regained.
For those who are advocating the civil liberty violations by government, remember that you are not immune to having your rights trampled on as well.
It is very easy to say who cares, it doesn't affect me because I don't drink and drive; let them force blood out of someone.
The day will come when something the government wants to force upon you will affect you and/or your family. When that happens, remember this thread. Don't support starting down the slippery slope.