While President Trump has advocated for a border wall built of steel slats that he claims would be “totally effective while at the same time beautiful,” a prototype tested by the Homeland Security Department was proven to be vulnerable to a saw.

A photograph taken at “Pogo Row” along the California-Mexico border and obtained by NBC News shows the aftermath of the testing in which military and Border Patrol personnel were instructed to attempt to destroy the barrier prototype using common tools, as described in a DHS report.