Six months after it was established to protect the nation from terrorism, the Department of Homeland Security is hobbled by money woes, disorganization, turf battles and unsteady support from the White House, and has made only halting progress toward its goals, according to administration officials and independent experts. The top two officials under Homeland Security Secretary Tom Ridge are stepping down amid criticism from some White House officials and elsewhere in the administration. So few people want to work at the department that more than 15 people declined requests to apply for the top post in its intelligence unit — and many others turned down offers to run several other key offices, government officials said. Desperately needed repairs to the department’s cramped, red-brick headquarters on a Navy facility in Northwest Washington have been stalled by a shortage of money. Some employees at the complex do not have the secure telephone lines required to do their work, the officials said. Full Story