In March 2017, The federal government of the uk pulled its advertising strategies from YouTube, right after reviews that its ads had appeared on videos made up of extremist written content. The federal government demanded assurances that its advertising and marketing would "be sent 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/