The original article, which I read this morning, stated that CBP is aware and has been aware of this, and that they fully expected the cartels to adapt. It also stated that when the wall is more complete they will be able to use a system to detect the vibrations for a rapid response, that the current wall is stronger than the previous and harder to breach, and that Trump originally wanted a thick concrete wall but they went to this type of wall because of the democrats bitching. Okay, they didn't say "bitching." The rest is from the article.