You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "Which structure currently operates as a "virtual fence:"  Boarder Wall or Mexico-United States Barrier?" whose answer is Mexico–United States barrier.
Each document should contain about 30 words, and these documents should contain useful information.

Query: current status of border wall and mexico-us barrier
Useful Output:

Doc 1: Walls built along the U.S.-Mexico border over the past several decades are a blight on the landscapes and cultures of the borderlands.
Doc 2: The Trump administration is once again pushing forward with the U.S.-Mexico border wall. In this video, we break down the latest move by
Doc 3: Construction restarted on a border wall near the San Ysidro Land Port of Entry on the US-Mexico border in California on Jan. 22, followed by border wall
Doc 4: Border wall construction resuming: The administration is using funds appropriated in 2021 to build seven miles of border wall in south Texas,
Doc 5: The Texas Facilities Commission has closed on 105 easements representing approximately 70.3 miles of Texas Border Wall. Director Novak reported that the program