religious change in the us

A new Pew study on religious affiliation in the US.  Pew studies tend to be fairly carefully done, but I get a bad feeling when "atheism" is lumped in as a religion - they clearly don't get the idea of what the null set means.

A quick read of the summary suggests there is a great deal of flux.   Potentially good reading (the study, not the summary) for when there is a bit more time.