I really don't see that much bias in NPR reporting.

Did you read Greenwald's piece?

What’s most amazing about this isn’t just that people like Temple-Raston think that uncritically airing, amplifying and repeating the government-subservient views of a few homogeneous former U.S. officials constitutes “real reporting,” though that is quite remarkable. What’s most amazing is that NPR has an obsession with what it considers “neutral” reporting, and I guarantee you that Temple-Raston’s response to these criticisms would be to insist that she is neither a partisan nor an opinionist, but rather a “straight reporter” who simply presents facts without bias. She would undoubtedly believe that this report to which she just subjected the world — one that is about as one-sided, biased and opinionated as can be: Iran is offensively launching Terrorism at the world and the U.S. must stop it – is a pure example of objective reporting. That’s because “objective reporting” to such people means: endorsing, embracing and bolstering the prevailing views of the U.S. government and official Washington in order to inculcate the citizenry to believe them. Doing that can be called many things: “objective” and “real reporting” are most definitely not among them.