An executive at private-equity firm Arlington Capital Partners, which has agreed to buy iRobot's defense and security business, said Thursday he expects to add to the business with acquisitions. Peter Manos, who oversees Arlington Capital's aerospace and defense investments, told Inside Defense the company has long been interested in iRobot. "It's a great technology, it's a great company and it's right down the middle of the fairway," he said. "iRobot is the standard in ground-based robotics, and we've had...