Homeland Security will start building border wall prototypes this summer

The Department of Homeland Security will start construction of prototypes for a border wall this summer in the San Diego area, agency officials said on Tuesday, the first step in fulfilling a campaign promise made by President Trump.

Homeland security officials said the prototypes would be added to the existing border walls in San Diego and would allow the agency to evaluate which barriers are most effective in giving Border Patrol agents time to respond to illegal drugs and human smuggling. Officials said they planned to build four to eight prototypes but did not say when construction would begin.