Reports of people being shackled, detained and held for deportation, some of whom have permanent residency, have raised global concerns. Here's what attorneys say.

Recently, green-card and visa holders have been facing tougher scrutiny at airports. Immigration attorneys give tips on how reduce the chances of running into problems while traveling.

The impact on immigrants is dramatic,” one immigration lawyer said. “I can’t overstate that, and it’s like nothing I’ve ever seen in my 25 years of practice.”