Following CACI International's announcement that it will buy L-3 Communications' services business, CACI's chief executive said he expects the contractor to continue to actively pursue deals in a rapidly changing industry. CACI last week said it has agreed to pay $550 million for the business, which adds nearly $1 billion in annual sales and about 4,000 employees to CACI's ranks. The deal would make CACI one of the largest services contractors with about $4.4 billion in annual revenue. In an...