It would be a daunting challenge for even the sharpest programming wizards: set up a secure computer network for the 190,000 workers in the Homeland Security Department. It will take years to design and build a new system that unifies information-sharing at the reconstituted agencies now under one umbrella, said Edward Kinney, director of information technology for Customs & Border Protection. Compounding the challenge will be the task of keeping existing networks operational and secure during the transition. Full Story