Contracting executives say they're facing difficulty in getting security clearances approved, in some cases slowing their ability to staff contracts. During a call with analysts late last month, Lloyd Howell, Booz Allen Hamilton's chief financial officer, said the "government's pace of approving security clearances" is creating a challenge for the industry. "As a result, we're being more creative in recruiting, retaining and deploying professionals who already hold clearances," Howell said. "It is a competitive market in terms of talent." Kevin...