UPDATE: I just notified my local FOX News station - hopefully they will be able to find out more information. I will let you all know if they cover this in their news broadcasts, or cut in, etc...
I just wanted to add...when I started working at a hospital in “82” the bomb threat policy was that staff were not to leave but to look around their work areas and let LE know if anything out of place. We had no threats during the several years that I worked there.