That is because many of them already require store workers to ask people for identity documents.

这是因为许多专卖店已经要求工作人员让顾客出示身份证明。

In fact, of the 1.7 billion people in the world who are unbanked, 20 percent is due to not having a legal identity document.

事实上，世界上 17 亿没有银行账户的人中，其中 20% 是因为没有一张合法身份证件。

Thousands of migrants who are fleeing a profound economic and political crisis had been allowed to travel using only identity documents. The BBC's America's editor Candace Piette has the details.

数千名逃离经济和政治危机的难民只允许通过身份证件旅行，以下是BBC美洲编辑坎迪斯·皮尔德的报道。