Here is the right opinion,,,, (what do you think: achi khane kukur le achi khayako thik ki nakhayako thik?). 10 million people are including Nepali students are not allowed to work in USA without workpermit, but they do work, some of them pay taxes, some of them don't. But, what do you called opportinutes: -working illigally, put yourself on risk. What is different if you take the responsible to do the risk job(its doesn't matter, wherever you work). If you are being used to serve someone, there is no pride to say the opportunite, but suffering.