Armed with seven cameras, a Xavier robot in Singapore issues warnings to the public and detects 'undesirable social behaviour'. SINGAPORE: Singapore has trialled patrol robots that blast warnings at people engaging in "undesirable social behaviour", adding to an arsenal of surveillance technology in the tightly controlled city-state that is fuelling privacy concerns. Officials have long pushed a vision of a hyper-efficient, tech-driven "smart nation", but activists say privacy is being sacrificed and people have little control over what happens to their data. The government's latest surveillance devices are robots on wheels, with seven cameras, that issue warnings to the public and detect "undesirable social behaviour". During a recent patrol, one of the "Xavier" robots wove its way through a housing estate and stopped in front of a group of elderly residents watching a chess match.
