In border communities, such as El Paso/Ciudad Juarez, families are spread across the border.
Families tend to migrate to either the U.S. or Mexico in border towns so that they aren't split.
mnli hypothesis: Families tend to migrate to either the U.S. or Mexico in border towns so that they aren't split. premise: In border communities, such as El Paso/Ciudad Juarez, families are spread across the border.