U.S. proposes United Nations arms embargo on South Sudan

By Michelle Nichols UNITED NATIONS (Reuters) - The United States proposed on Wednesday implementing a United Nations arms embargo on South Sudan and further targeted sanctions from Sept. 6 unless President Salva Kiir signs a peace deal to end the country's 20-month conflict. According to a draft resolution circulated to the U.N. Security Council - and seen by Reuters - if U.N. Secretary-General Ban Ki-moon reports before Sept. 6 that both parties have signed the deal and implemented a ceasefire