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.

Example Input: Under English common law, the Castle Doctrine was intended to be a narrow exception to the general duty to retreat.
Example Output: Invalid

Example Input: However when a militia group makes the news, these same anti-gunners are quick to paint them as dangerous, anti-government, and even racist extremists, and an example of why gun control needs to be further tightened.
Example Output: Valid

Example Input: We border two countries one of which is quite corrupt, what makes you think that criminals can't get guns.
Example Output:
Valid