not exactly the way it works.. if you don’t have a visa they don’t let you on the plane, if you did somehow get on they’d send you home on the next flight.. detention centers are for those that get caught illegally trying to cross the border or are caught in America illegally.. play stupid games win stupid prizes!!
one is disability, Ssdi, and that ends or converts to social security, Ssi, when you reach full retirement age of 67.. don’t know about collecting outside of the country but will find out soon enough