没有哪项技术比枪支技术更有效，因此美国宪法规定，枪支不能被用来限制言论（第一修正案）或剥夺公民拥有枪支的自由（第二修正案 ） ， 政府的枪支持有者不允许进入居民家中（第三修正案 ） 。
No other technology was as apt, so the US Constitution specified that it would not be used to curtail speech (First Amendment) or be denied to the citizenry (Second Amendment), and that government holders of firearms could not be placed in citizens’ homes (Third Amendment).