Here is an important article by Mark Harris, 23 Dec. 2012 in The Sunday Times, Focus section on, p. 18.
"Are we ready for a world in which all our actions and words, however thoughtless, are recorded for posterity? How will friends, family and passers-by feel about being filmed without notice?"
"Life-logging, or filming all you do 24 hours a day, is the new big thing in tech. But when Mark Harris tries it, he soon wants to log out..."