Unfortunately I think the current administration (and possibly the last two as well) have a stake in wanting to foment civil strife in Mexico in order to break the border with a flood of refugees.
I agree, People have been wondering for years why the Feds would leave the door open, especially after a devastating attack on our own soil...
...Its kind of weird, over the years I watched and listened to the "fringe" talking about the SPP, the Amero, the Trans Highway, a Global Financial System, a One World Government... For some reason they don't seem as "fringe" anymore.