The sound potential scares the hell out of me. For obvious reasons. Yes, DARPAs in other countries....I can't think about it too much either. Was watching a three hour long mind control documentary and I couldn't even finish it it was so disturbing and I have a very curious mind and a strong stomach. But to think that what we know they were doing is about fifty years out of date, and DARPA is well known to be at least 20 years ahead of what tech we know, start imagining that and yeah, it will keep you up at night. So I guess that's when you claim crickets.