Telegraph: On the evening of April 18 1977, President Jimmy Carter invited television cameras into the Oval Office and portentously announced to the American people that "tonight I want to have an unpleasant talk with you about a problem unprecedented in our history. With the exception of preventing war, this is the greatest challenge our country will face during our lifetimes.'
The unprecedented problem was energy. Or rather, the lack of it. "We simply must balance our demand for energy with our rapidly...