It's Progress

I'm not so sure that it's a coincidence that the revival of progressivism as a political label has coincided with a more strident secularism/atheism, a greater obsession with the supposed right-wing threat to "science" (read: left-wing policy preferences on stem cell research, cloning, genetic engineering, etc.), and a greater sympathy for Darwinism-as-a-universal-theory among thinkers associated with the political left.