The Department of Homeland Security has invested tens of millions of dollars and countless hours of labor over the last four years on a seemingly simple task: creating a tamperproof identification card for airport, rail and maritime workers. Yet nearly two years past a planned deadline, production of the card, known as the Transportation Worker Identification Credential, has yet to begin. Instead, the road to delivering this critical antiterrorism tool has taken detours to locations, companies and groups often linked to Representative Harold Rogers, a Kentucky Republican who is the powerful chairman of the House subcommittee that controls the Homeland Security budget