ICE and Border Protection are cracking down on U.S. Permanent Residents with long-resolved criminal records. Now Green Card holders are afraid to leave the country, for fear of not being allowed back.

A lawful permanent resident who has lived in the U.S. for 50 years was detained because of a decades-old conviction amid tougher immigration enforcement at airports and border crossings.

A green card, or a Permanent Resident Card, allows non-citizens to live and work permanently in the United States. Individuals can be eligible for a green card through family, employment, refugee ...

Mr. Wildes said that any green card holder looking to travel outside of the United States for six months or longer should apply for a re-entry permit, which allows lawful permanent residents to re ...