(Photo : Carl Court/Getty Images) A close-up view of the Telegram messaging app is seen on a smart phone on May 25, 2017 in London, England. Telegram and the calls of violence on it became a sticking point for former U.S. ambassador Marc Ginsburg who filed a lawsuit against Apple for hosting the messaging app on its App Store. Ginsburg claimed that he experiences emotional distress over Apple continuing to have Telegram under its wing, as stated in the lawsuit, reported Mashable. Ginsburg referred to the increasing rate of calls for violence seen on Telegram's chat service, as Endgadget reported. Ginsburg filed the lawsuit alongside his anti-extremism advocacy group, The Coalition for a Safer Web.