When the Volstead Act was finally repealed, Americans were told that the nightmare was over and liquor could once again flow from taps across the land. That’s the official story. The truth? The liquor never stopped flowing. The only thing that really changed was the sudden drop in gunfire between rival bootlegger gangs. With Prohibition’s end, the blood-soaked streets of Chicago and Kansas City quieted. Peace—however tenuous—returned. But Congress wasn’t satisfied. They were spooked by years of gangland carnage and wanted a silver bullet to make sure it never happened again. They knew they couldn’t outright ban guns. The Second Amendment was still standing in their way like a stone fortress. So they pulled a sneaky, unconstitutional end-run: The National Firearms Act of 1934. This wasn’t legislation. It was sabotage. They created a backdoor registration scheme, tied to a brutal $200 tax—a small fortune during the Great Depression—on items like machine guns, silencers, short-barreled...