Freetown (AFP) - Sierra Leone began a quarantine of more than one million people Thursday in the largest open-ended lockdown in the Ebola outbreak, as world leaders met to discuss the crisis at the United Nations. The northern districts of Port Loko and Bombali have been closed off indefinitely along with the southern district of Moyamba -- effectively sealing in around 1.2 million people. With the eastern districts of Kenema and Kailahun already under quarantine, more than a third of the population of six million -- in five of the nation's 14 districts -- now finds itself unable to move...