JerryQ (923802) writes "It is a simple step from this new technology to record sounds in public places, including stadiums, the microphones will not need to be in a circle, and, after the event, replay any conversation within range. The scope for intrusion is truly terrifying. At least here in the UK the government would never sanction it. mmmph." Link to Original Source
I've never been canoeing before, but I imagine there must be just a few
simple heuristics you have to remember...
Yes, don't fall out, and don't hit rocks.