Call it intellectual trickle-down: Great thinkers of our time talk to Bill Moyers, then he talks to us. In the engrossing "Bill Moyers on Faith & Reason" (debuting 9 p.m. Friday on KCTS), he mind-melds with Salman Rushdie, Margaret Atwood, Martin Amis and other writers on the rise of radical Islam and fundamentalist Christianity, their similarities, their influence on politics — and the need for transcendence even among skeptics. The Emmy-winning broadcaster, 72, settled in for a spirited dialogue from the porch of his New Jersey home. Q: Why talk to writers about faith and reason? A: Because storytellers have...