The answer is
The tensions between the us and the user led to increassed weapon developement
I believe the answer is: settlement houses, which offered health care and day care to working mothers.
Social gospel movement was a christian based movement which driven with the view that all Christians should take care of other people in society to emulate the life of Jesus Christ.
This lead to the creation of many small welfare programs near the church, including health care, free day care, free meal for homeless, etc.
From my prior knowledge it’s smuggling things like drugs and guns from the border so it made it hard for those to move to the u.s
Sorry if this doesn’t help