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: There is no reason law-abiding citizens need to defend themselves as they are untrained, do not have full knowledge of the law and eventually cause more harm than good by owning such weapons.

SOLUTION: Valid

PROBLEM: If I were the AG, and I were bent on trying to find out if a person has bought firearms, then I would first run a name search through a database like Accurint.

SOLUTION: Valid

PROBLEM: In Boston, New York and some other cities, there are unsubstantiated rumors, put out by the authorities, that cab drivers have no second amendment rights.

SOLUTION:
Valid