In March 2017, The federal government of the uk pulled its advertising and marketing campaigns from YouTube, soon after stories that its adverts had appeared on video clips containing extremist information. The federal government demanded assurances that its promotion would "be delivered safely and securely and properly". The Guardian newspaper, https://bluetechsolarcell.com/%e0%b9%82%e0%b8%8b%e0%b8%a5%e0%b9%88%e0%b8%b2%e0%b9%80%e0%b8%8b%e0%b8%a5%e0%b8%a5%e0%b9%8c-%e0%b8%ab%e0%b8%99%e0%b8%ad%e0%b8%87%e0%b8%9a%e0%b8%b1%e0%b8%a7%e0%b8%a5%e0%b8%b3%e0%b8%a0%e0%b8%b9/