Italy slams door on people hoping to claim citizenship through great-grandparents

A great-grandparent from Italy used to be all it took to guarantee Italian citizenship. A surprise decree has now changed all that, making it much harder for those with Italian ancestry to use blood line as a pathway to become Italian.

​ A great-grandparent from Italy used to be all it took to guarantee Italian citizenship. A surprise decree has now changed all that, making it much harder for those with Italian ancestry to use blood line as a pathway to become Italian. Read More Breaking News, Latest News and Videos | CNN