BBC: The world's largest bid to harness the power of fusion has entered a "critical" phase in southern France. The Iter project at Cadarache in Provence is receiving the first of about one million components for its experimental reactor. Dogged by massive cost rises and long delays, building work is currently nearly two years behind schedule. The construction of the key building has even been altered to allow for the late delivery of key components. "We're not hiding anything - it's incredibly frustrating,"...