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: Funny they weren't interested when 'they' were buying guns to give cartels by the truckload and were notified by the dealers.

SOLUTION: Valid

PROBLEM: The police have absolutely no way of telling who is in possession of an illegal and unregistered firearm, and there's not a law that California can pass to do a thing about it.

SOLUTION: Valid

PROBLEM: And where laws were passed, the gun lobby has had success in watering those laws down.

SOLUTION:
Valid