https://www.reuters.com/article/us-india-twitter/twitters-india-woes-worsen-as-police-summon-chief-over-viral-video-idUSKCN2DU0HA

LUCKNOW, India (Reuters) -Police in India have summoned Twitter's top official in the country to answer allegations that the U.S. firm failed to stop the spread of a video that allegedly incited "hate and enmity" between Hindu and Muslim communities.