"I also hear people divulge way too much information in public...such as routing numbers, credit card details and the like...People need more than a privacy scr

"I also hear people divulge way too much information in public...such as routing numbers, credit card details and the like...People need more than a privacy screen." Would you believe...that technology to deal with this problem was actually invented in the sixties (for the intelligence community)? And, while the original version was bulky, a portable version does exist. No doubt it could be updated for the 21st century. Training Video: http://www.youtube.com/watch?v=eUoT0a9Rkac&NR=1 http://www.youtube.com/watch?v=eUoT0a9Rkac&NR=1 (There's a wikipedia page about this tech also, if you care to look).