UNITED STATES (CBS) — Your electronic devices may alarm you today — but there’s a reason for that. A nationwide test of the federal emergency alert system will be broadcast at approximately 2:20 p.m.

Hopewell, Virginia, will conduct a citywide "Shelter in Place" drill on Dec. 16. Residents who have signed up for emergency alerts will receive a test text message. The drill will test the emergency ...

WASHINGTON -- This is why you may have gotten a notification from the White House on Wednesday. The government tested a new national alert system that would let presidents send out emergency messages ...