By Emily Badger and Kennedy Elliott
The deportation reprieves that President Obama extended to millions of immigrants this week are relatively arbitrary. The president’s executive action would delay deportation for the undocumented mother of a child born in the U.S. on Thursday — but not an undocumented mother who gave birth here one day later. Similarly, the president has offered deferrals to children brought to this country by their parents before their 16th birthday — but not a few weeks after.