do あなた believe the "Infrared Filter, X-ray Vision Video Camera Lens" should be legal または do あなた think its just a con for perverts?

I don't think it should be legal. It should only be used for government reasons, because of the many perverted crimes that would most likely happen.
Sure, it's cool, but it's totally also a con for perverts.

Where can I find one of those? :) Just kidding! No, I don't think they should be legal.