I received the information from reliable sources who received the information directly from Border Patrol agents who wish to remain anonymous.
So does the National Inquirer, you'll have to do better than that.
I have received similar info re crossings at the Canada/US bridges in the Buffalo NY area. I did not and will not publish it because it was too vague for me to do so.
Accordingly, I believe the lesson of this thread should be "There are occurances at border crossings that are not being revealed to the American public." Occurances that would reveal a much clearer picture of the threats we face.
And perhaps that is as it should be...