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In order to enhance public opinion of a new crowd control technology, the US military has been showcasing a new weapon it has nicknamed the "pain ray".

The high-tech system cost more than $120m to develop and was deployed in Afghanistan two years ago. It was recalled, however, due to concerns about the public perception that the military would be "microwaving" Afghans.

Josh Rushing reports from Quantico Marine Corps Base, Virginia.

Source: Al Jazeera