美国境内所有手机10月3日将收到总统信息！你没法取消的

信息文本

“THIS IS A TEST of the National Emergency Alert System. This system was developed by broadcast and cable operators in voluntary cooperation with the Federal Emergency Management Agency, the Federal Communications Commission, and local authorities to keep you informed in the event of an emergency. If this had been an actual emergency an official message would have followed the tone alert you heard at the start of this message. A similar wireless emergency alert test message has been sent toall cell phones nationwide. Some cell phones will receive the message; others will not. No action is required.”