DAVID GREENE, HOST:
Good morning. I'm David Greene, wishing I were in San Francisco. An anonymous and apparently wealthy person there has been distributing $100 bills in white envelopes and then tweeting hints about their location from the Twitter handle @HiddenCash - tweets like, in the abandoned phone box next door, and, under the orange chair closest to Blue Bottle Coffee. One online magazine has identified the mystery person as a real-estate magnate who's giving back to, quote, "the community that has made me wealthy." You're listening to MORNING EDITION. Transcript provided by NPR, Copyright NPR.