Crime lab scenes on television are full of forensic mumbo jumbo -- and now it seems that the real-life experts at the FBI have been making stuff up too. The FBI and the Justice Department have announced that agency experts’ bad testimony helped convict hundreds of suspects of murder, rape, and other violent crimes. In 32 of those cases, defendants received the death penalty. And 14 of those have been executed or died in prison. The main problem is hair analysis, which turns out to be not very accurate.