One more way to force Mexico (and other nations south of the US border) to pay for the wall First off, to be perfectly clear, I'm not only talking about a wall as border security. A wall is useless without people to guard it. It's just a layer of security. One element in what should be laws and infrastructure to prevent criminals and illegal aliens from entering our country undocumented.  First off, the expense of capture, detainment, food and shelter, legal expenses, medical aid, can all be charged back to the country of origin for any person caught entering illegally. How?  By imposing an adjustable tax or tariff on all goods coming from that country. An added adjustable tariff spread evenly across all international trade targeted at the country from where the aliens originate. It can be tabulated yearly, biannually or in quarters and then applied to trade. If the offending nation raises their tariffs to offset the tax then our tariffs will rise accordingly. Reciprocal tariffs. That way, countries from which these aliens are coming from, directly feel the impact of their own citizens rather than US taxpayers.  Of course, deportations should also be done for every person who no longer has permission to be here by overstaying visas and such. Illegal Alien roundups should continue.  I put this out there because I do think Team Trump is watching and listening.  Hospitals, social services, and all other government funded outlays should be carefully monitored to identify those who are not in the USA legally. Identify and target for deportation.  Student enrollment needs to also be monitored. Children, here legally or not, should have their parentage inspected to determine if they are here illegally. Round them up and hold them in detention, collect their children and ship them to their home country. Who says it's wrong to ship a child who was born here to parents here illegally can't be deported? That's garbage. Their parents are here illegally, then they also should have no legal status simply because they were born here. If people are here legally as residents, their children should inherit their status.  Period.