The passing away of K. Subrahmanyam, the bureaucrat turned strategic affairs expert and journalist, at the age of 82 after a valiant battle with cancer, has provoked a flurry of warm tributes in newspapers. The former Economic Times editor Swaminathan S. Anklesaria Aiyar, who brought “Subbu” into ET, recalls Subrahmanyam’s prolificity: “Many journalists have trouble…