I think power discrepancies between private citizens can be just as great. I'm 5'6" and 120lbs. Even unarmed, many people pose a threat to me. Heck, I've been physically threatened by strangers several times in the past month.

Also, I think recording strangers in public would help curb antisocial behavior. There's a guy swearing loudly on his cell phone on the bus I'm riding. Maybe he'd tone it down a little if someone threatened to upload a video of him.

Some people are just anti social[1] and do not care.

[1] preparing a joint isn't anti social! They're not smoking it on the bus. But it is illegal in the UK.

We have that ability already. In Australia last year there were several cases of racially motivated verbal abuse on public transport being caught on mobile phones. These made the evening news. I wonder if this, and other similar instances around the world, have made anyone think twice before being anti-social.

Yet another instance where life logging would have been useful: I was walking home this evening and someone in a car blasted me with an air horn. It's been about an hour since the incident. Both my ears feel like they are plugged and I hear ringing in my right ear. I got the car's make and model, but I was in too much pain to think about looking for the plate. Life logging probably would have caught the perpetrator.

You propose that people log there every day lives? Why don't we just increase the CCTV cameras on every street, so some one can watch our every moves 24/7.

I apologize if I've misinterpreted your comment.