Pirates? Sonic Weapons?

This story is too interesting to pass up mentioning. Apparently pirates, which are more common than one might think nowadays, attempted to board the wrong cruise ship recently. The result was that they got blasted by a high power LRAD weapon which may have repelled their attack .

From the AP article:

The Seabourn Spirit had a Long Range Acoustic Device, or LRAD, installed as a part of its defense systems, said Bruce Good, a spokesman for Miami-based Seabourn Cruise Line. The Spirit was about 100 miles off Somalia when pirates fired rocket-propelled grenades and machine guns as they tried to get onboard.

The subsidiary of Carnival Corp. was investigating whether the weapon was successful in warding off the pirates, he said. The ship's captain also changed its course, shifted into high speed and headed out into the open sea to elude the pirates, who were in two small boats, he said. He had no further details.

Source: http://www.bradenton.com/mld/bradenton/news/breaking_news/13106303.htm