I tend to disagree, Peace, on both counts.<br/><br/>Firstly, 90% of contagious diseases that are transmissible to humans are spread by humans, such as cholera, typhoid, plague, smallpox, measles, mumps, rubella, polio, flu, tuberculosis, etc... These diseases can be prevented from spreading by a simple inoculation. But as recent history has shown, these diseases, which had at one time been eradicated in the "civilised" world, are putting an appearance back in again, because people are not vaccinating their children any more.<br/><br/>If people do not vaccinate their children, what hope does a slave have of being vaccinated?<br/><br/>All it takes is one person carrying the disease to get in amongst a crowd of unvaccinated people and you have an epidemic the like of which could actually rival the SARS, Bird flu, or even, god forbid, the swine flue pandemics of recent years, with, oooh, dozens of people dying! </sarcasm><br/><br/>Anyway, my point being that there may well be cause for a government to restrict the movement of unvaccinated slaves in the same way they restrict the movement of unvaccinated dogs, cats and livestock.<br/><br/>As for the deportation/arrest issue, their is no crime committed on the nation's soil. When you travel internationally, you leave your country of origin when you go through (air)port security at the departure gate. You do not, then, enter your destination country until you have been through passport control at the (air)port of arrival. A slave holder is more likely to be refused entry than allowed in and arrested.<br/><br/>However, it would be impossible for the non-slave countries to sustain their economies without some trade with the slave nations. (Incidentally, this is a rather odd thing about the map Hai posted - the slave countries are all developed nations, non-slave are all undeveloped, which is ironic as those nations in which the slave law has been enacted are those which do not treat their women like slaves on the most part, while those nations shown to be anti-slavery are the ones that do!) So, there must be trade. This means that there must be contact, and there must be visits. Therefore there must be visas.<br/><br/>So, my question is, would it be possible to get a visa to bring your slave with you to an anti-slave country? I would suggest that it would have to be, somehow.