FBI to Congress: Murder, Wrongful Imprisonment May Be Necessary to Preserve Drug Investigations

"This would be a morally dubious policy even if we were talking about matters of, say, national security. But we aren't. We're talking about the FBI concealing evidence of murder and other violent crimes, and of knowingly allowing innocent people to go to prison in order to not disrupt drug investigations. In other words, all of this is necessary, the FBI is saying, to keep people from getting high."