Get ready to not freak out. On Wednesday, Oct. 4 at 2:20 p.m. EDT, every TV, radio and cellphone in the United States should blare out the distinctive, jarring electronic warning tone of an emergency ...

Your electronic devices may have alarmed you on Wednesday — and there's a reason for that. A nationwide test of the federal emergency alert system started broadcasting just before 2:20 p.m. EDT to ...

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