The big questions of how it rebuilds after the tsunami , how it manages its debt , how it eradicates deflation and how it deals with china have been postponed or fudged .
Gates said he 's confident that polio will become the second viral disease that humankind eradicates ( the first being smallpox in 1979 ) , but he was loath to predict when that might happen .
Some companies are working with a compound called halamine : it is grafted on to fibres where it attracts and captures ambient chlorine , which is turn eradicates micro-organisms that come into contact with it .
