text: Will the wall President Trump wants to build have a subterranean counterpart to prevent drug dealers and illegal immigrants from tunneling under it? Does the Transportation Security Administration have enough resources to cover all airports and train stations and the Coast Guard and Navy enough resources to protect both coasts? Perhaps a better strategy might be to help the home countries of illegal immigrants to improve their economic and social conditions so that their citizens can achieve their dreams in their own countries rather than coming here. On the other hand this country's population is aging. We need more qualified working aged people to serve the growing number of older people than are presently available in the native born population. Also, since the primary source of Social Security funding is through taxes paid by workers unless the native born birth rate increases we will need more qualified immigrants.