 This is CBS News on the Hour, sponsored by Dr. Marty's Nature's Blend dog food. I'm Jennifer Kuiper. What's being called the largest IT outage in history has disrupted travel, businesses, and services around the world. CBS News Boston reporter Christina Rex on some of the following. New York's Memorial Sloan Kettering postponed all procedures requiring anesthesia. Atlanta's Emory Healthcare delayed certain types of surgeries. And Seattle Children's Hospital closed its outpatient clinic today.