https://www.reuters.com/article/us-newzealand-shootout-britain-corbyn/uks-corbyn-says-social-media-platforms-must-act-after-new-zealand-attack-idUSKCN1QY0EK >Social media platforms must be able to react more quickly and stop the broadcast of live events, the leader of Britain's opposition Labour Party said on Sunday, after a gunman in New Zealand broadcast a shooting rampage last week.