SAN FRANCISCO  — When Mohamed Ali Samantar, former prime minister of Somalia, arrived in the United States in 1997, he quietly took up residence in Virginia, far from the violence and chaos of his homeland.  Now he has become the focal point of a Supreme Court case that will decide whether he can be held accountable in a U.S. civil court for human rights abuses allegedly carried out by military forces under his control in Somalia.  Read More…