The lied detector was invented by the creator of the Wonder Woman comic after he noticed his wife's blood pressure rose when she was angry. It gained widespread

The lied detector was invented by the creator of the Wonder Woman comic after he noticed his wife's blood pressure rose when she was angry. It gained widespread adoption after he made commercials for Gillette to "prove" that their razors were superior to the competition. It's wacky comic book technology that doesn't work. It only appears to work because it tricks people into confessing to crimes. Why stop at the lie detector? Why not have a block of kryptonite at every airport to protect them from attacks by Zod? Why not give every cop a batarang? It's insane that we still allow our governments to spend our tax dollars on this.