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: Gun haters will do any thing to ban the right to bear arms!

SOLUTION: Valid

PROBLEM: The killers in the Columbine massacre obtained three guns via a straw purchase by another student, acquired their automatic from a gun dealer and purchased a fourth from a seperate student.

SOLUTION: Valid

PROBLEM: Additionally, laws were rewritten in hopes of preventing such a thing from happening again.

SOLUTION:
Invalid