"Research has long substantiated the harmful effects low frequency noise can have on people. Symptoms include aggravation, decreased concentration, premature exhaustion, elevated blood pressure, increased heart rate, insomnia, migraines, anxiety, frustration, sleep disruption, anger, contempt and many others."
Reading your post reminded me of this:-
https://en.wikipedia.org/wiki/The_Mosquito
An ordinary guy invented a machine that deterred teenagers from loitering outside his convenience store 20 years ago.
Makes you wonder what a dept such as Fauchis could create with their dark budgets.
Here's an article on Low Frequency Intrusion:
http://www.lowfrequencyintrusion.com/?p=about
"Research has long substantiated the harmful effects low frequency noise can have on people. Symptoms include aggravation, decreased concentration, premature exhaustion, elevated blood pressure, increased heart rate, insomnia, migraines, anxiety, frustration, sleep disruption, anger, contempt and many others."