The Tsarnaev Family

Just a little bit on the sisters, and their latest court dates, here.  What exactlhy do they live on? And why do they stay in this country when they so obviously have no affection for it, for the Infidel laws and customs, for anything at all? The Caucasus is wide and welcoming, and their parents are back in Dagestan. And are so many other Muslim countries where they would be right at home, among people just like themselves. Why must they stay here, where no good can come of their presence?