National Australia Bank chief executive Cameron Clyne confirmed at a business lunch in Sydney that the bank was paying attention to the forced divestment by RBS and Lloyds of select banking assets in Britain. Clyne did not give much away on NAB's thinking on the prospects, however."We're watching closely. We aren't sure what assets will be divested … we're very keen to see how it develops,'' he said.He pointed out the difficulties for a purchase, given the somewhat artificial divestment plan imposed by the European Union on the two banks."If you're trying to carve off branches, it can be a very complex transaction."