some talking points to work with if in fact this site gets shut down for maintenance and when they get it back up, it's not working. byron, thank you very much. good to see you tonight. >> thank you, harris. healthcare.gov is going down in less than two hours. coding experts and website designers are working around the clock to fix this thing. do they have a shot at meeting the deadline? what still needs to be done? our cyber expert is coming up, next.