Seymour M. Hersh didn't even want to write a memoir. His publishers at Alfred A. Knopf ... said, 'Write a memoir,' and I said, 'No way,'" Mr. Hersh, 81, recalled the other day. The story of a working-class [kid who] exposed the horror of the My Lai massacre, revealed domestic and foreign abuses by the C.I.A. and harried Washington's elite ... was not finished. Not for the first time in his career, the editors prevailed. "Reporter," a 355-page memoir, will be released on Tuesday. The book ... reconstructs his reporting on Vietnam, his feuds with Henry Kissinger, the foibles of former bosses. He notes that major publications passed on his My Lai expos, fearful of government denials that American soldiers had murdered dozens of Vietnamese civilians. In the end, Mr. Hersh syndicated the stories himself, and won a Pulitzer Prize for his efforts. Mr. Hersh's place in the pantheon of reporters is secure, but his current status is ambiguous. In arguably the most fertile moment for investigative reporting since Watergate, he has been on the sidelines. By choice, he said. Mr. Hersh has found himself at odds with much of Washington's reporting establishment since The New Yorker declined to publish his report on the death of Osama bin Laden - a story that directly contradicted the account given by the Obama White House and much of the mainstream press. His subsequent reporting on Syria, which questioned whether President Bashar al-Assad had gassed his own people, was similarly derided. But Mr. Hersh is unrepentant.