The problem I see is, People are so ignorant that they believe the Bullshit that comes out of Politicians mouths. Until 1935, you could own any weapon that the Military had. Hmmmm..... We could own anything we wanted for 146 years and it was fine. Then when the bank robbers and organized crime folks came along during Prohibition and then the Depression, they took our 2nd Amendment rights away. As for Cannons, we can own all the Cannons we want but we aren't allowed to have explosive rounds.