In March 2017, The federal government of the uk pulled its advertising and marketing campaigns from YouTube, soon after reviews that its adverts had appeared on films containing extremist articles. The federal government demanded assurances that its advertising and marketing would "be shipped safely and correctly". The Guardian newspaper, https://listbell.com/story10026067/%D8%A7%D9%84%D8%B1%D9%8A%D8%A7%D8%B6-fundamentals-explained