Clarence Hurt was driving, and he got lost. “Does anyone know where the Post Office Building is?” Hurt asked at one point. “I can tell you,” Karpis said. “How do you know where it is?” asked Clyde Tolson, who sat in the backseat with Hoover. “We were thinking of robbing it,” Karpis said.
Bryan Burrough, Public Enemies: America's Greatest Crime Wave and the Birth of the FBI, 1933-34
alvin-karpis, fbi, humorous