The U.S. Customs and Border Protection (CBP) has started with physical tests of the  “Trump Wall” border prototypes as part of the final determination of which build will be best able to withstand invasion attempts from Mexico.

The official start of the testing period was November 27, but physical tests began this past week, Carlos Diaz, CBP’s public affairs branch chief for the southwest border told ABC radio.

The physical testing will include attempts to scale and breach the prototypes with jackhammers, saws and hydraulic tools.

During the procurement process, the companies were required to build the walls at least 6 feet deep. The depth of the walls was evaluated during the construction process, according to Diaz.

Read the rest at The New Observer.