North Korea instructed the country Monday to brace itself for possible famine and severe economic hardship — but not to despair, because “the road to revolution is long and arduous,” according to an editorial in the state-run newspaper. The article, published in Rodong Sinmun — the print mouthpiece of the North Korean government — comes less than a month after the U.N. Security Council voted in favor of slapping the Hermit Kingdom with tougher sanctions, after the country teased its potential nuclear and military capabilities earlier this year. The editorial stated that hardships to come might evoke another “arduous march”...