John Kampfner, pictured, is a huge supporter of Taiwan's walk in health system (Image: -)Wars, global warming, political instability, rising fuel prices… you could easily be forgiven for never wanting to switch on the TV news again. No wonder we all feel desperately gloomy about the future, with world leaders at each other’s throats, the cost of living a constant worry, our NHS struggling to cope and social care on its knees. But a new book by award-winning journalist John Kampfner might help you feel a little more optimistic about the future. The British author spent three years visiting ten…