TASK DEFINITION: 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.
PROBLEM: Sad but true, the old saying of "give them an inch and they will take a mile" comes to mind.

SOLUTION: Valid

PROBLEM: Lott's More Guns, Less Crime is the bible of the national movement to persuade state legislatures to pass so-called "concealed carry" laws, which permit citizens to carry concealed firearms.

SOLUTION: Valid

PROBLEM: I know that we all would like to pretend we have the power to change the world, but for gun crimes you are dealing with the hardened hearts of men who are willing to take anothers life.

SOLUTION:
Valid