Brıtaın Aırspace Open

epa02125949 The first planes land back at Gatwick Airport, London, Britain, 21 April 2010. As air traffic resumed in Britain after six days of paralysis Wednesday, questions were being asked whether the blanket closure of airspace was justified. In an unexpected turnaround late Tuesday, the Civil Aviation Authority (CAA) ruled that airspace could be reopened after new guidelines based on a "reassessment" of the risk from the volcanic ash cloud.  EPA/GERRY PENNY