The Federal Emergency Management Agency released a brief review of this week’s nationwide emergency alert test. That hasn’t stopped conspiracy theories about the alerts from spreading online, however.Wednesday’s combined test from the FEMA and the Federal Communication Commission included the Wireless Emergency Alerts, or WEA, and the Emergency Alert System, or EAS. Messages were sent to cell phones, televisions and radios at about 2:20 p.m. ET (1:20 p.m. CT) to determine how effective the warning system was in distributing a message nationwide and the “operational readiness of the infrastructure for distribution of a national message to the public.”“All the cell...