Source: Religion News Service The letter to the Russian patriarch comes amid calls to expel him and the Russian Orthodox Church from the WCC. By Jack Jenkins (RNS) — The head of the World Council of Churches is urging Patriarch Kirill of Moscow, the head of the Russian Orthodox Church, to call for a cease-fire in Ukraine as Orthodox Christians celebrate Easter this weekend. “People lost their trust and hope in politicians and in a possible peaceful negotiation and a ceasefire,” the Rev. Ioan Sauca, a Romanian Orthodox priest and acting general secretary of the World Council of Churches, wrote in a letter…