EPA gives states OK for tougher tailpipe exhaust rules

(Flickr photograph by aliciagriffin)

OLYMPIA, WA - West Coast states can forge ahead with tougher tailpipe emissions rules. The federal government has granted trendsetter California a long-awaited OK. But the Obama Administration’s plans to increase gas mileage standards on a national basis mean West Coast states will not go it alone. Correspondent Tom Banse reports.