The use of tear gas to control crowds has soared in recent years. But researchers say most of what we know about its health effects is based on old data, and that there is no meaningful oversight. (Aug. 6)
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The use of tear gas to control crowds has soared in recent years. But researchers say most of what we know about its health effects is based on old data, and that there is no meaningful oversight. (Aug. 6) Subscribe for more Breaking News: http://smarturl.it/AssociatedPress Website: https://apnews.com Twitter: https://twitter.com/AP Facebook: https://facebook.com/APNews Google+: https://plus.google.com/115892241801867723374 Instagram: https://www.instagram.com/APNews/ You can license this story through AP Archive: http://www.aparchive.com/metadata/youtube/a84f62f4cf7b4185a93368468592b660