Since Sept. 11, 2001, newspaper editors have faced excruciating choices in covering the government's efforts to protect the country from terrorist agents. Each of us has, on a number of occasions, withheld information because we were convinced that publishing it could put lives at risk. On other occasions, each of us has decided to publish classified information over strong objections from our government. Last week our newspapers disclosed a secret Bush administration program to monitor international banking transactions. We did so after appeals from senior administration officials to hold the story. Our reports — like earlier press disclosures of secret...