An Egyptian state security prosecutor renewed, on Sunday, satirical cartoonist Ashraf Omar’s detention in a case that had raised concerns in Egypt and worldwide over restrictions imposed on free expression in the Arab World’s most populous country. Held via video conference briefly in Omar’s absence, his detention has been renewed for the second time for another 15 days pending further investigations into the charges allegedly “being involved in a terrorist group, disseminating false news and misusing social media tools.” Over the past decade, regime critics, activists and journalists were com…