washington - The Trump government has selected four American construction companies to make a prototype for the concrete wall that the president wants to raise on the border with Mexico. This has revealed the Customs and Border Protection Service (CBP).
Closed contracts are worth between 400,000 and 500,000 dollars. For that amount, the builders from Alabama, Arizona, Texas and Mississippi must build a wall of 9 by 9 meters. The results will be tested in San Diego.