The FBI had come a long way since its reorganization and renaming in 1935 (from the Bureau of Investigation, created in 1908). J. Edgar Hoover was appointed as the acting head of the Bureau in 1924 and completely transformed the agency. Despite its successes, however, the agency had many problems. In those days, when the application of science and technology to fight crime was still in its infancy, the agency was at the mercy of public citizens for information. Often agents on bad information were sent off to remote locales on "tips" that turned out to be red herrings. The personal low point for Hoover came at an April 1936 United States Senate hearing. Senator Kenneth McKellar of Tennessee lambasted Hoover for the performance of the FBI and the fact that Hoover himself had never personally arrested anyone. After the hearing, a determined Hoover vowed he would capture Karpis personally.