We would like you to assess the QUALITY of each of the following argument (discussing Gun Control) and determine if the argument is Valid or Invalid. A valid argument is clearly interpretable and either expresses an argument, or a premise or a conclusion that can be used in an argument for the topic of gun control. An invalid argument is a phrase that cannot be interpreted as an argument or not on the topic of gun control.

As noted by the 38 States that have appeared in this case as amici supporting petitioners, ���[s]tate and local experimentation with reasonable firearms regulations will continue under the Second Amendment.���
Valid

Citing the Second Amendment and the increasingly maniacal rhetoric of conservative media firebrands, a small handful of violence-threatening protesters aims to make the rest of us -- whether pro- or anti-health-reform -- afraid to speak out.
Valid

Gun owners would have to be evaluated by how they scored on written and firing tests, and have to pass the tests in order to own a gun.

Valid