Brd Eborder News Today

Working in the country. whether that is realistic, is one question. how well do border fences work? tom foreman has been looking into that tonight. he joins us. how would donald trumps version of a brd eborder wall work, tom? >> it will start by being the biggest thing in the world we see like it in the modern world. this wall would be 2,000 miles long in its completed stage. already about 700 miles of the border have been covered by a fns fence of some sort. if we want to double that part. not ...