<sod >" Last week, Osborne ruled out a formal currency union with Scotland if it becomes an independent, warning that voting Yes means losing the pound. The Prime Minister also said it "would be difficult to justify a currency union post-independence.< eod>< sod > " Last week, Osborne ruled out a formal currency union with Scotland if it becomes an independent, warning that voting Yes means losing the pound. Labour and Lib Dems also declared opposition to an independent Scotland being able to carry on using the pound. Salmond hit back at Westminster arguing that the "accumulated negativity" displayed in recent weeks will differ "greatly from the reality of life" in Scotland.< eod>