Here's a quickie set of reference links for you. If you're looking for RSS feeds and podcasts from U.S. Government, FirstGov offers a couple of useful directories with links to both types of material.
+ U.S. Government RSS Library
Browsable by topics that include health, business and economics, and science.
+ Podcasts from the U.S. Government
At the moment, 11 podcasts are listed.
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