Texas Republican Gov. Rick Perry’s recent decision to call up the National Guard to stem the flow of migrants illegally crossing the border brings up several hot button issues. Whose responsibility is it to guard U.S. borders? Should the military be involved in such a mission? What do we do with the thousands of people, many of them unaccompanied minors, coming over the border? How do we turn them back when most are simply seeking greater freedoms, economic opportunity, or fleeing dangerous situations in their home countries?