I mentioned this in another forum then realized it would also fit here, so I edited it a little and here it is again.
A ministerial servants' head told me confidentially he and some friends had harrassed an Oklahoma City sister who partook of the emblems by using miniaturized sound and voice making devices.
In some congregations the elder body and their closest pioneer sisters also don't like JWs and ex-JWs they think are big-mouths because they are afraid they will tell about things like child molesting.
Some Mormons and covens also use the latest technologies. Where's this stuff come from? I'm just guessing brothers who used to be in U.S. intelligence come by the devices.
So nobody thinks I'm making all this up here's a picture of a much larger U.S. army LRAD (Long Range Acoustical Device). http://www.cnn.com/2004/TECH/ptech/03/03/sonic.weapon.ap/
Those send out ear-splitting noises, and not long ago an ocean liner owned by a private firm and called the Seabourn Spirit used an LRAD against a boat of pirates who had attacked http://news.bbc.co.uk/1/hi/world/africa/4418748.stm
http://news.yahoo.com/s/ap/20051108/ap_on_fe_st/pirate_attack_sonic_weapon
Spencers and many other novelty stores sell prankster noise and voice devices for about $15-20, but those are fairly large and unsophisticated compared to the military and cult equipment. http://shop.store.yahoo.com/trcfm/sounthatdriv.html http://www.prankplace.com/rc.htm
Spying is really nothing new among cults, criminals in business and voyeurs. Wiretapping goes back to almost as long ago as there's been telephones, and parabolic mikes have been used a lot in recent times, but using of long range harrassing or stalking devices is new stuff.