Some television and radio stations did not air the planned 30-second test at all . 80 % to 90 % of the first stations to air said they received the alert , an FCC official says . Others say the test did what it was designed to do : find flaws in the system .
Some television and radio stations did not air the planned 30-second test at all . 80 % to 90 % of the first stations to report said they rebroadcast the alert , an FCC official says . Officials say the test did what it was designed to do : find flaws in the system .