Garrison Keillor to leave Prairie Home Companion

The long-time radio host plans to leave his show in 2013, right after he finds his replacement. The news comes from, of all places, AARP:

"When I was younger, I was all in favor of it, and now that I'm at that age, I'm not sure," he explained. "I sure don't want to make a fool of myself and be singing romantic duets with 25-year-old women when I'm 75. But on the other hand, it's so much fun. And in radio, the lighting is right."