So-called ‘sound cannon’ weapon draws concerns

The Long-Range Acoustic Device, or LRAD, was used by Pittsburgh police to disperse protesters during 2009’s G20 summit. Courtesy photo

HILO — Gov. David Ige said Wednesday concerns expressed in a Tuesday letter by the American Civil Liberties Union of Hawaii that a long-range acoustic device will be used as a “sound cannon” against Thirty Meter Telescope protesters on Maunakea is based on “a lot of misinformation on that equipment.”