HOPE comes from surprising places. In cases of corruption, it comes from informants. They are small-time thieves who expose big-time corruptors. Their motives are diverse, from seeking vengeance to expunging their sense of guilt over their own involvement in the crime. Legally, they are known as justice collaborators or witnesses who are willing to testify. They are also whistleblowers, who are not involved in the case but who are willing to take