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: Comparing statistics between different nations can be quite difficult since foreign officials frequently use different standards in compiling crime statistics.

SOLUTION: Valid

PROBLEM: It contends that, as recognized in Heller, the Second Amendment does not prevent the government from prohibiting firearms in sensitive places, which includes GMU's university buildings and widely attended university events.

SOLUTION: Valid

PROBLEM: do you mean a gun should not be the fall back defensive???

SOLUTION:
Valid