<p>Viacom, ESPN, and NBCUniversal could pay a high price for airing a trailer that used an emergency-alert sound in a promotion for a film about a terrorist attack on the White House.</p><p>The Federal Communications Commission slapped $1.9 million in fines on the three cable networks Monday for airing a promotion for the film Olympus Has Fallen starring Morgan Freeman, Aaron Eckhart, and Gerard Butlerthe largest fine yet in an ongoing series of investigations on the misuse of the Emergency Alert System signal.</p><p>The trailer, which aired last March, opens with the emergency-alert alarm followed by a man saying, "The most protected building on earth has fallen," along with images of Washington's landmarks under attack and text reading "THIS IS NOT A TEST" and "THIS IS NOT A DRILL."</p><p>Cable channels are prohibited by federal law from airing content that use the actual or simulated emergency-alert signal, except during an emergency or an authorized test. Authorities use the system to alert the public about floods, tornadoes, missing children, and other emergencies.</p><p><a href="http://www.nationaljournal.com/tech/espn-nbc-and-viacom-face-1-9-million-fines-for-olympus-has-fallen-20140303">Keep reading...</a></p><p>Read also:</p><p><a href="http://www.mediaite.com/tv/fcc-fines-networks-2-million-for-airing-olympus-has-fallen-trailer/">FCC Fines Networks $ 2 Million for Airing Olympus Has Fallen Trailer</a> (Mediaite)</p><p><a href="http://abcnews.go.com/Business/wireStory/false-alarm-olympus-movie-ad-draws-19m-fine-22758932">False Alarm &#039;Olympus&#039; Movie Ad Draws $ 1.9M Fine</a> (ABC News)</p><p><a href="http://www.thewrap.com/fcc-proposes-1-9-million-fines-film-ad-used-alert-tone/">FCC Fines Networks Over &#039;Olympus Has Fallen&#039; TV Ad</a> (TheWrap)</p><p>Explore: <a href="http://news.google.com/news/more?ncl=dTZv7frBRjk-IeMBso7w8VjqpRSfM&authuser=0&ned=us">87 additional articles.</a></p>