As if corporate and multinational spying on your private conversations was not enough, yet another threat is evolving in the privacy business, which is the ready availability of listening devices which can eavesdrop not only on your phone conversations, but your private, face to face communications as well.
These devices can be as small as a postage stamp, and record your conversation with incredible digital clarity, from the other side of the globe. 
It brings to mind the old adage, if you don’t have something nice to say….maybe it is best kept to yourself.