content: Technically not true. That's the entire point of the liberator pistol. Which has been around before WWI; albeit not plastic. But the article has a lot of falsehoods and rhetoric in it. If you want an untraceable bullet, use a sabot. They've been around forever. Additionally, plastic debris with powder residue is an extremely telling clue to forensics. A liberator would almost certainly leave this behind. Drastically helping an investigation. They lie and claim it's scary and unknown. Factually, it would be very helpful to an investigation.