UN General Assembly leaders also focused on the spiraling Ebola crisis in West Africa. International health officials warned that if the disease keeps spreading at its current pace, hundreds of thousands could be infected by the end of the year. Aid groups are seeking additional resources to combat the deadly disease. Saudi Arabia this week unveiled new Ebola screening measures for all arriving airline passengers. The hajj, or pilgrimage to Mecca, begins next month, with up to three million pilgrims expected.