Robert Henke of Monolake just emailed me this link to some projects he is working on

“Henke Systems ™ offers a wide range of sonic crowd management systems. These systems create a high energy pulse of sound in user defined time intervals, optionally preceded by legal warnings where applicable. Just like a neutron bomb, the sound bursts do not harm buildings, city infrastructure or private property but will make it impossible for unwanted persons to stay in the exposed areas. ”

I love the idea of Henke Systems ™ corp . . .wonder what the receptionists look like?