Dozens of protesters stage a mass inhalation of Nitrous Oxide commonly known as laughing gas outside the Houses of Parliament in central London on...
{"Image ImageDescription": "Dozens of protesters stage a mass inhalation of Nitrous Oxide, commonly known as laughing gas, outside the Houses of Parliament in central London on August 1, 2015. The group of demonstrators inhaled the gas from balloons and chanted in protest at the government's proposed Psychoactive Substances Bill. Legal highs such as \"hippy crack\" would be made illegal under a draft law published by Britain's government Friday, May 29, 2015. AFP PHOTO / JACK TAYLOR        (Photo credit should read JACK TAYLOR/AFP via Getty Images)"}