September 27, 2017, 8:07 AM| Federal contractors are working on eight versions of a border wall to divide the U.S. and Mexico. The wall was one of President Trump’s chief campaign promises. The prototypes are being built in a remote area of San Diego, California. Builders are essentially auditioning for the full government contract, which has not been funded yet. Mireya Villarreal reports.
Source: CBS News – United States