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Barclays to wind down commodities arm

Exit from energy and metals business follows stricter regulation

Eurozone peripheral interest bills climb

Big deficits mean servicing debt remains costly

Ukraine shootout puts truce deal in doubt

Kiev rejects Moscow claims that it broke Geneva accord

Brown to join Scotland unionist campaign

Former PM gives his support as polls narrow

Investors eye more Apple share buybacks

Impact of iPhone sales in China set to be revealed