World News Podcast - August 14th, 2012

In tonight’s podcast, the hot summer is turning American forests into tinderboxes as giant wildfires spread across the west.  Also getting heated, speeches on the campaign trail from both parties' vice presidential candidates.  And find out how Paul Ryan's Medicare plan could affect you.  At the University of Iowa, ABC's Lisa Stark makes some startling discoveries while taking a simulated driving test under the influence of Ambien.  This and more in the World News Podcast.

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