The law appears to be unclear for permanent residents: https://mobile.nytimes.com/2017/02/14/business/border-enforcement-airport-phones.html https://mobile.nyt

The law appears to be unclear for permanent residents: https://mobile.nytimes.com/2017/02/14/business/border-enforcement-airport-phones.html https://mobile.nytimes.com/2017/02/14/business/border-enforc...