Yeah, it's a win when greencards are lost and sold all the time. Backgrounds can't be checked because some that cross the borders do not use their given name, therefore a criminal record is unavaliable on either side of the border. I'll bet we have no problem jumping the Mexican border and carrying a gun legally either. How about reciprocy between countries?
Humans have the right to self preservation, I agree. But that right should extend world wide to all people. I myself have mixed feelings about this, it is because of one single incident.