It turns out it was the nationally syndicated radio show, the Bobby Bones Show, out of Nashville that mistakenly triggered an Emergency Alert System (EAS) message purportedly from the White House last week. The show's anchor station WSIX-FM accidentally fired off an EAS alert using the code normally reserved for a message from the White House. The alert was picked up by radio and TV stations across the country.
FEMA's Integrated Public Alert and Warning System, which oversees the EAS, says it's working with the FCC and EAS equipment companies to make sure this doesn't happen again.
RadioWorld has published a series of short-term and long-term ideas from FEMA for EAS participants to use until the problem is worked out. Some settings on EAS equipment can be changed; software needs to be current; and participants need to make sure they're current on EAS information from their vendors, FEMA and the FCC.