In this Wednesday, April 15, 2015 photo, Sudanese fishermen prepare their boats on the banks of the Nile River in the early morning hours, in Omdurman, Khartoum, Sudan. The world's longest river, the Nile�'s water is shared by 11 countries, ending in Egypt and the Mediterranean Sea. Its main tributaries, the Blue and the White Niles, meet just north of Khartoum. (Photo by Mosa'ab Elshamy/AP Photo)
