The Trump Administration's Plan to Improve Border Security

No one was talking about a wall before Trump, but now they have to figure out how to translate that into policy reality without seeming like they're flip-flopping. San Diego and El Paso are both urban areas; it would be really easy for somebody to kind of just dive into a house once they've crossed the border there. There are parts of the Rio Grande where they do think that physical barriers would also be helpful after people swim over.