Homeland Security Secretary Michael Chertoff said yesterday that he has launched a top-to-bottom review of the 180,000-employee department and will consider revamping entire agencies and programs that are part of it. “Old categories, old jurisdictions and old turf will not define our objectives,” Chertoff said in a speech at George Washington University, 13 days after he took over the department. “Bureaucratic structures and categories exist to serve our mission, and not to drive it.”Full Story