(Will Ragozzino/Getty Images)

• Garrison Keillor
slipping quietly into Sunday morning services at tiny Episcopal Church of the Redeemer near Glen Echo — surprise, you assumed he was Lutheran, didn’t you? In town for “Prairie Home Companion” broadcasts from Wolf Trap this weekend, the radio humorist (jeans, button-down shirt, jacket) and a friend kept a low profile, didn’t stick around for coffee after services.