Actress Susan Sarandon, actress Riley Keough (centre) and director Josh Fox (left), protest during a rally by the Standing Rock Sioux tribe in support of a lawsuit against the Army Corps of Engineers and plans for the Dakota Access Pipeline outside the US District Court in Washington, DC, yesterday. The roughly 1,200-mile-long pipeline would transfer about a half million barrels of oil a day from North Dakota to Illinois. Opponents of its construction worry that a leak or rupture would spell disaster for not only the Standing Rock Indian Reservation, but for all communities along the Missouri River that depend on it for drinking and agriculture.