By definition, a wall is a BARRIER. And it was ANTI-useful to U.S. national security. While protective of the "liberties" of our foreign enemies who merely happened to already be on our shores.
I think you missed my point - which was:
Our complaint must be accurate. If what she did was shutdown a door in the wall, or change the affect of a door, or make a wall higher, then that's what we must point out.