In March 2017, the government of the United Kingdom pulled its advertising campaigns from YouTube, just after experiences that its ads had appeared on video clips that contains extremist written content. The government demanded assurances that its advertising and marketing would "be sent safely and properly". The Guardian newspaper, https://fatallisto.com/story10187464/top-%D8%AF%D9%8A%D9%83%D9%88%D8%B1%D8%A7%D8%AA-%D8%AE%D8%B4%D8%A8%D9%8A%D8%A9-%D8%AF%D8%A7%D8%AE%D9%84%D9%8A%D8%A9-secrets