US President Barack Obama has declared a federal emergency over the Michigan city of Flint's lead-poisoned water crisis that has affected its almost 100,000 residents, with children suffering the most, over almost two years. The White House on Saturday authorised the Federal Emergency Management Agency (FEMA) to coordinate disaster relief efforts to "alleviate the hardship and suffering" of Flint's residents. FEMA can now provide water, filters, and other necessary items to the city through federal funding. The announcement came days after Michigan Governor Rick Snyder asked Obama to issue the emergency declaration. On Tuesday, a class-action lawsuit was launched against the state of...