Marco is received by his children, Nataly, 9, and Kenny, 7, at their apartment in Langley Park, Md., a community filled with immigrants. (Oliver Contreras for The Washington Post)

He arrived home as usual, with dusty jeans and a handful of junk mail.

“Hola bambinos,” Marco said as he opened the door to the cluttered one-bedroom apartment in Langley Park, Md., he shares with his wife and two kids.

“Papi!” shouted his 9-year-old, Nataly, looking up from her Barbie kitchen play set. But instead of embracing the small girl with big eyes and a dark braid, Marco backed away.