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Washington Metropolitan Police conduct a sobriety check point associated with a news conference on drunk driving, on August 14, 2012 in Washington, DC. The National Highway Traffic Safety Administration (NHTSA) held a news conference to discuss the national anti-drunk driving campaign and law enforcement crackdown.
This week we talked about the debate the National Transportation Safety Board stirred up when they made recommendations about lowering the legal limit for drunk driving from .08 to .05.
The proposal is controversial, although that is the legal limit in many European countries. We asked KPCC Science Reporter Sanden Totten to explore what the different levels mean, and what it takes to reach them.