Italy’s Constitutional Court has signaled support for a controversial law restricting citizenship by descent, a move that could block millions of people abroad from claiming Italian nationality. Since Italy became a country in 1861, there has been a surefire way to know who is and isn’t an Italian citizen: look at their parents. The first page of the civil code, published in 1865 as the rulebook to Europe’s newest country, declared that a ch... [8391 chars]