TOPSHOT - Nikki Haley, US Ambassador to the United Nations, brushes her hair during a UN Security Council meeting at United Nations headquarters in New York on April 10, 2018. Russia on Tuesday vetoed a US-drafted United Nations Security Council resolution that would have set up an investigation into chemical weapons use in Syria following the alleged toxic gas attack in Douma. It was the 12th time that Russia has used its veto power at the council to block action targeting its Syrian ally. / AFP PHOTO / HECTOR RETAMAL