' Buy British!' we often hear & many foreign companies have done just that. US food giant Kraft bought Cadbury in 2010 Dutch group Akzo Nobel acquired ICI in 2007 Deutsche Bahn now own Arriva & that's just the beginning. The truth is that hundreds of billions of pounds' worth of British businesses have been sold off abroad in recent years. But what does this takeover bonanza mean for our future economic health? In Britain for Sale award-winning financial journalist Alex Brummer investigates this question explaining why British companies are so irresistible to overseas buyers & weighing up the true cost of these transactions.