Prototypes for the proposed physical barrier between Mexico and the U.S. failed to meet the standards of “non penetrable,” with the recently released CBP report revealing that several test teams were able to breach sections of the wall. The heavily redacted report showed how the $20 million Otay Mesa border wall designs will need to undergo significant improvements before any construction plans can be implemented.In at least one case, test crews were able to make the prototype wall completely “unstable" to the point of collapse. Several breaching scenarios were tested by . . .