An often overlooked phrase in the Second Amendment protects Gov. Rick Perry’s right to militarize his southern border with National Guard troops.
Here’s the complete text of the Second Amendment (emphasis mine):
A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.
In other words, this amendment was enacted to ensure the right of the individual states to protect their sovereign liberty and their sovereign borders with their own armed forces.