shivonne gorman is our guest reporter. guest: the white house puts a lot of stock in the role of the department of homeland security. many feel that it is only a decade old, and cybersecurity is a new responsibility. even the national security agency have been doing this for decades. i am wondering why focus so much on the department of homeland security, and how much are you responding to concerns from lawmakers? guest: first, when we look at the role of the different parts of government, you mention the department of defense and national security agency, which has those great technical capabilities. if i need someone to protect the system, they are the folks i go to. if you look at the civilian responsibility across, and security, you look at the things put in place for homeland security and the relationship to the private sector, there is not a place to put it. drawn within the department of defense and energy and department of justice and fbi, is a supportive role, but someone has to lead this. as a consequence, they c