"victory over death". It's the unmistakable signature of BOPE, the elite Military Police troop that revolutionized urban battle tactics and established itself as the most lethal and best-trained urban police unit on the planet - and, at the same time, for starring in some of the most controversial and debated pages of Brazilian public security, generating heated discussions about methods and results. This is BOPE, the special operations battalion of the Rio de Janeiro police.