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FEMA on Wednesday will send nationwide wireless alerts that are expected to reach more than 228 million devices
Coming Wednesday to most American cellphones: a presidential text alert.
The Federal Emergency Management Agency plans its first test of a system for sending nationwide wireless messages to U.S. cellphones and some smartwatches. The drill is scheduled to start at 2:18 p.m. ET, followed two minutes later by a similar message sent through television and radio broadcasts. Some wireless alerts could be delayed by as much as 30 minutes.