But if you're the kind of person that thinks alien abductions are real, climate change is not, evolutionary theory is a fraud, government should stay out of our lives except for abortion, and so on then you will probably think NPR is a biased hedonistic den of sin.
Here's a serious and legitimate challenge, find me a concrete example of bias in any of NPRs news programs. (Morning Edition, All Things Considered, Top of the hour news updates).
The more editorial programs on public radio (This American Life, On The Media) are more opinionated, and the quality of local news is only as good as your public radio station, but NPR News is as clean as an organization as there has ever been.