Senator Frank Murkowski, who chairs the House committee on Energy and Natural Resources, said the energy secretary made repeatedly given assurances that improved security measures at the lab were protecting America's nuclear secrets.

BBC: CIA chief takes nuclear secrets role

If they have few indigenous energy resources, they may value, as Japan has done, the security offered by plants running on fuel that is cheap and easily stockpiled.

ECONOMIST: The dream that failed

The long term outlook for supplies of food, natural resources, and energy is becoming so severe that the CIA is now viewing it as a national security threat.

FORBES: Lunch With the CIA

These meetings have reached similar conclusions: The water, energy and food security nexus will be one of the major challenges in achieving universal access to these resources without compromising the health and stability of the environment.

FORBES: Should Countries With No Water Be Pushing for Growth?