It's amazing how the above gets twisted by the NRA to mean, for example, that the government can't require chemical signatures in high explosives, or that Teflon-coated bullets can be sold to anyone who wants them.
Here is a little historical footnote about the US: Prior to the conclusion of the US Civil War (which was pretty uncivil, actually) the verb "to be" was conjugated grammatically after the name of the country, as in "The United States of America are. . ." (rather than "is"). I'm not an English teacher (nothing wrong per se with being one of those, mind you), but I tend to think the currently accepted ungrammatical conjugation creates more than a little confusion about the nature of my country.
Speaking of another linguistic pet peeve of mine, I noticed the following in the article:
"We have an 11-year-old witness who was in one of the vehicles who said they stopped to go to the bathroom"
Who installed the bathroom?