It’s a high-capacity assault sword and it should be banned. Nobody needs more than a 10” dagger to defend himself.
A true Samurai swordsman is not dressed properly unless he carries both the Katana (long sword) and either or both a Wakizashi (shorter sword) and/or Tanto (short sword or dagger). The Katana blade is approximately 28-30 inches long; the Wakizashi is approximately 24 inches long, and the Tanto about 12 inches. All are razor sharp.
I knew it! : )