As a Motorcyclist who frequently rides around with a Video Camera attached to my Crash Helmet, recording both sound and video during my travels around my local English countryside for fellow motorcyclists, (and anyone else, especially my American Motorcycle Chums), to view on You Tube....
...I found this article interesting...>>> http://www.bbc.co.uk/news/business-39999009
One thing I always make a point of, is avoiding videoing folks in close vicinity (Petrol Stations, Shops, etc,).
Not everyone likes being videoed for all sorts of reasons, so I always switch the camera off, or remove it.
Its interesting to observe its accepted/unacceptable use in other countries!
Paul...Candid Camera.... ...!