JERUSALEM - In a case that would seem unthinkable in the Jewish state, police said Sunday they have cracked a cell of young Israeli neo-Nazis accused in a string of attacks on foreign workers, religious Jews, drug addicts and gays. Eight immigrants from the former Soviet Union have been arrested in recent days in connection with at least 15 attacks, and a ninth fled the country, police spokesman Micky Rosenfeld said, in the first such known cell to be discovered in Israel.