An investment worth £1.5bn, creating 1,500 jobs in cutting-edge clean energy, and revitalising a disused former oil and gas port in the Highlands - it sounds too good to be true. And so it has turned out to be at Ardersier, where the UK government has turned down plans for a wind turbine factory from the Chinese company Ming Yang . Normally, investment and jobs on that scale would have politicians of all parties lining up to shake hands and sign deals. But when it comes to Chinese investment,