Liberal Bias at NPR?

I listen to NPR. It's a good way to get details on issues that aren't available elsewhere. If you were to define liberal as "truth seeking" then they are very liberal.

Some NPR facts:
http://online.wsj.com/article/SB10001424052748704050204576218543378702266.html?mod=googlenews_wsj

"In surveys by GfK MRI, most listeners consistently identify themselves as "middle of the road" or "conservative." Millions of conservatives choose NPR, even with powerful conservative alternatives on the radio."