BBC: Evacuations have begun in areas of the US East Coast likely to be hit by Hurricane Earl. The hurricane strengthened to a category four storm again, generating sustained winds of 215km/h (135mph). President Barack Obama said officials needed to be ready for a “worst case” scenario in a call to the US Federal Emergency Management Agency (Fema). One island in North Carolina’s Outer Banks is being evacuated and visitors are being asked to leave another. The narrow …