Voice of America News Online (www.voanews.com) has a Special English section where you can listen to podcasts online and read the written transcripts that accompany them.
Here's an interesting podcast on Michael Pollan's book The Omnivore's Dilemma which deals with America's unhealthy and destructive relationship with food.
Click here to access the audio file and the transcript: http://www.voanews.com/specialenglish/2009-02-17-voa1.cfm
I suggest you read the transcript first, then listen to the podcast, then listen again with the transcript in front of you. If this topic doesn't interest you, check out the many other podcasts listed on the Voice of America website.
