Sign on car prompts stranger to donate a kidney

SAN DIEGO – Michael Miller was stuck in traffic in Temecula, California, one evening when he noticed a homemade sign posted on the back of the car in front of him. It read: "Need a kidney donor for my Mom. Type A," and included a phone number. He took a photo of the message and posted it on his Facebook page. "That night, I happened to open up Facebook, and it was the first thing I saw," says Christine Massa, a friend of Miller. She fired off a text to the phone number, which belonged to the sister of the woman needing a kidney, saying she had blood type A and was interested in donating. "What...