controversy

They're controversial in Cape Cod, a welcoming sight in Seattle, and growing in number across the Unites States. New wind farms are being built almost daily.Opponents argue that the pure size of wind turbines (about 250 feet tall) results in an ugly skyline and a dangerous flight path for birds. Supporters

Should doctors assume that people are happy to donate their organs unless they make the effort to opt out?

That's the scenario being considered in the UK, as a means of reducing the widening gap between supply and demand for donated organs. At the moment, a dead person's organs cannot be taken unless they registered themselves in life as a donor.