Thoes laws are in place . Bad guy does not follow laws , not all mental illness is diagnosed before firarm is purchased . There are some medical issues not communicated with instant check system .I believe you rights to bare arms should be sacrosanct BUT............. Anyone with a history of mental illness or even minor felony convictions should be banned from owning guns, and the responsibility for not selling guns to nutters and gangstas should lie in the hands of the SELLER.