Senator David I. Walsh (Democrat–Massachusetts), isolationist Chair of the Senate Committee on Naval Affairs, scheduled a committee hearing to unearth the details of the incident, which prompted Admiral Harold R. Stark, Chief of Naval Operations, to issue a written report. Stark's account, made public in October 1941, confirmed that the "Greer" dropped its charges only after the submarine fired its first torpedo at it, but revealed that the "Greer" had gone in search of the submarine after its presence was noted by the British aircraft. Admiral Stark's report stated: