It's the low hanging fruit in the US, no big lobby support ! The kicker is when is the last time you remember mid tech or custom knives being used criminally (the Sebenza slasher or Rockstead ripper ) ? Most crimes are committed with box cutters or kitchen knives even screwdrivers (and let's be honest guns are preferred) ! Not distinct or easily recognizable knives ! It's a way for politicians to set up a table with the most overdone items from the mall ninja arsenal and say "we're making a difference" ! The seizures in the UK got so ridiculous they stopped showing them (antique swords and literal silverware) ! I live in New Jersey , no automatics , double edged , or gravity knives allowed ! Because of course automatics kill faster ,double edged can kill twice as many ,and I have to believe they think "gravity" knives actually effect the earth's gravitational field itself endangering all life on the planet !