The difference between America and all other nations is the right of the people to keep and bear arms is specifically spelled out in the 2nd Amendment.  This amendment isn't about hunting, it is about the people holding their government in check against tyranny.  Without arms, the unarmed populace is nothing but compliant serfs living on the lord's land. 
 
The back of the shirt says, "The thing that sets the American Christian apart from all other people in the world is that he will die on his feet rather before he will live on his knees. George Washington."
 
Printed on the sleeve is, "In God We Trust ... and he that hath no sword, let him sell his garment and buy one. Jesus (Luke 22:36)"
 
Fitting reminders of our sacred duty.