RIO DE JANEIRO / AP New, stricter security checks were implemented in Brazilian airports this week, stalling travellers and delaying flights less than three weeks before Rio de Janeiro hosts the Olympics. Starting early morning, long, chaotic lines formed at Congonhas regional airport in Brazil’s biggest city, Sao Paulo. Within a half-hour, more than 700 people were waiting on the …

  London / AP China and Russia are making their presence felt in the multibillion-dollar aviation market. With demand for single-aisle aircraft expected to grow for years to come, particularly from Asia, some experts think the new firms have a real chance at cracking the market, especially if they have the backing of their national governments. But it won’t be easy …

  Bloomberg On a campus in southern India, Kiran Sharma and his team of biologists are perfecting a recipe that may solve the nation’s inflation woes. Sharma for six years has been testing a new variety of pigeon pea, a 3,000-year-old indigenous crop used to make dal, a staple of the diet in India. By adding a gene to the …