A police officer uses a robot to investigate a bomb threat in San Francisco in 2008.  The liberal city of San Francisco became the unlikely proponent of weaponised police robots in November before the plan was sent back to the drawing board. AP
A police officer uses a robot to investigate a bomb threat in San Francisco in 2008. The liberal city of San Francisco became the unlikely proponent of weaponised police robots in November before theShow more

Killer robot plan for San Francisco police scrapped over safety concerns