Energy poverty has left more than 1 billion people in developing countries without access to adequate healthcare, with staff forced to treat emergency patients in the dark, and health centres lacking the power they need to store vaccines or sterilise medical supplies, according to a report.

In the poem “Mending Wall,” Robert Frost asserted that “good fences make good neighbors.”  World history is replete with foreign policy built around physical walls, from Emperor Hadrian, to the Great Wall of China, to the Berlin Wall, the wall between Palestine and Israeli, to the U.S.-Mexico border.  Containment and isolation have often been the cornerstones of policy.