Last week's disclosure that MSNB's Keith Olbermann -- and Fox's Joe Scarborough -- had previously undisclosed campaign donations has become Washington's lastest tempest in a teapot, following closely on the NPR Juan Williams / Nina Totenberg debacle -- but it's as good a time as any to ponder the question of how me we know or don't know about the folks we trust to give us the education news and commentary -- print reporters, broadcast folks and regular pundits. Traditionally most fulltime journalists are required not to participate in campaigns (NPR recently told its staff not to go to the
