Every 15 minutes at the Walgreens on Marginal Way in Portland, a robotic voice bellows a warning from a speaker 22 feet in the air. ⁠ ⁠ The poles, with flashing blue lights, solar panels, cameras and loudspeakers, are mobile surveillance systems, installed in the parking lots of some Maine businesses to scare off would-be criminals and curb growing retail theft. ⁠ ⁠ But critics argue that increased surveillance creates privacy concerns and may do more harm than good.⁠ ⁠ Read more through the link in our bio. Photo and video by @derekeldavis