3/8: Unemployment drops to 7.7%; And, powerful words save a teen's life

      |The Labor Department said 236,000 jobs were created in February and the unemployment rate fell to 7.7 percent - the lowest rate in more than four years; And, as part of our continuing series "On the Road," Steve Hartman meets Noah Brocklebank, a 7th grader from Columbia, Maryland, whose life was saved by strong words of encouragement.

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