As it should be, return fire if fired upon. Rock and a hard place here. Deporting illegals and guarding the border to prevent more coming in imo would be too overwhelming for the current amount of border patrol agents. I know Trump was probably just joking when saying "send to 80k extra IRS agents to the border", but since the assets are already employed why not shift their focus and train them for the job. Until then or something else, the border patrol would be overtaxed and probably feeling vulnerable without the current military forces helping. Tough situation for all really.