Defense contractors who have customers in the oil and gas industry say they're being hit hard by the declines in that market. Take Sikorsky, where building and maintaining helicopters for the oil and gas market has traditionally provided about one-fifth of the helicopter maker's sales, according to Samir Mehta, president of Sikorsky's defense systems and services business. The decline in that market "has put a lot of pressure on the demand," he told InsideDefense.com this week at the annual...