Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Magnitude of Beirut Blast Demands Costly Response Lisa Schlein GENEVA - The United Nations is preparing an appeal to cover the enormous emergency and acute humanitarian needs of hundreds of thousands of survivors of last week's devastating explosion in the center of Lebanon's capital Beirut. Lisa Schlein reports for VOA from Geneva. The magnitude and destructive impact of the blast is only now becoming clear. Latest reports put the number of killed at around 160, with 60 people missing and more than 5,000 injured. An estimated 300,000 people are homeless. And, the explosion, caused by 2,700 tons of ammonium nitrate knocked out Lebanon's principle port, which imports nearly 85 percent of the country's food. .