In March 2017, The federal government of the uk pulled its promotion campaigns from YouTube, right after studies that its advertisements had appeared on video clips made up of extremist articles. The government demanded assurances that its advertising and marketing would "be delivered securely and appropriately". The Guardian newspaper, https://hyperbookmarks.com/story20207871/the-ultimate-guide-to-%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