More than 750,000 legal residents are worried about their green cards because they don't have expiration dates, and U.S. immigration officials want to change that.

There's been no indication from the government that a change in policy is even coming, but there seems to be a sense, at least by some, that change may not be far off.

The cards with no expiration dates were issued in the late 1970s through the early 1980s. The idea is that if you get rid of the cards and require immigrants to apply for new cards, it would help authorities track down and deport those who may have committed crimes.

Most have agreed this change would help secure the nation's borders, but critics said it would be nothing more than an attempt to round up legal residents with criminal records, deport them and split their families up.

"Mostly, men are the ones who provide for the families, and usually the women stay home, taking care of the kids, and they are the main provider, and if they are deported, the family will have a great impact," immigration attorney Fernando Alvares said.