https://www.reuters.com/article/us-at-t-advertising-youtube/att-ads-returning-to-youtube-two-years-after-pulling-back-over-content-idUSKCN1PC1GX

AT&T Inc said Friday it will again buy advertising on Alphabet Inc's YouTube, nearly two years after the U.S. wireless carrier left the video platform when it discovered its ads may have appeared next to inappropriate content.