Some television and radio stations did not air the planned 30-second test at all . The FCC says it will not release specific test data to the public because broadcasters worry that potentially embarrassing results could discourage participation in future tests , and test data could reveal security vulnerabilities . The U.S. military said it was investigating what caused a malfunction in one of its most advanced fighter jets that forced an emergency landing on Tuesday. Officials 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 . The U.S. military said it was investigating what caused a malfunction in one of its most advanced fighter jets that forced an emergency landing on Tuesday. Officials say the test did what it was designed to do : find flaws in the system .