text:  This is All Things Considered from NPR News. I'm Ari Shapiro. And I'm Scott Tetreault. Americans awoke to their phones blowing up over the news of a global technological meltdown. The glitch left employees of airlines, banks, hospitals, and emergency services staring at the dreaded blue screen of death today as computers around the world were hobbled by one of the biggest IT outages ever. In the U.S., it left thousands of travelers stranded at airports across the country.