Birthright citizenship in global perspective

The vast majority of countries don't guarantee birthright citizenship. It's mostly limited to the Americas. Around the world, it's more common for nations to grant citizenship based on ancestry. Ming Hsu Chen, author of Pursuing Citizenship in the Enforcement Era, talks with The World's Host Carolyn Beeler about differing approaches, worldwide, as well as the repercussions of ending automatic citizenship where it has historically existed.