<p>This exciting story tells the participation of Antônio Sérgio Carréra, a Lieutenant-Colonel of the Brazilian Federal District Police, in the Management Course for Police Executives held at the FBI National Academy, in Quantico, USA. When he was invited by the US Department of Justice, Sérgio didn t think twice to engage on this fantastic adventure of close interaction with FBI Agents, American and foreign police officers, and to submit himself...