US emergency alert system: Everything to know about the national test

Today’s test of the US national alert system on mobile phones is intended to offer opportunities to learn and prepare for emergencies, but tests in the past have sparked conspiracy theories

​Today’s test of the US national alert system on mobile phones is intended to offer opportunities to learn and prepare for emergencies, but tests in the past have sparked conspiracy theories Today’s test of the US national alert system on mobile phones is intended to offer opportunities to learn and prepare for emergencies, but tests in the past have sparked conspiracy theories