A report this week from eMarketer seems to find it surprising that half of internet users have concerns about facial recognition. People have always had worries about facial recognition, look at how the Chinese are using it, to check where you are all the time, and establish who is involved in civil complaint or civil disobedience. When Intel thought it might add facial recognition to TV sets, it was shunned and had to climb down. eMarketer cites data from the Brookings Institution and shows this graph, which shows that 50% of people are either very unfavorable or somewhat unfavorable about if this technology should be used for identifying thieves in stores. Already San Francisco in the Us has tried to…