Home Depot in LA installs noise machines that ‘penetrate bones’ to deter day laborers
(www.theguardian.com)
I've seen this article reposted in a couple of places, and only after your comment I connected the dots of why there are people collecting outside Home Depot. A pretty interesting symbiotic relationship that all parties benefit from. Why HD uses psychoacoustic weaponry against laborers is still irrational and infuriating.