On the campaign trail, Donald Trump was crystal clear: "On day one, I will launch the largest deportation programme of criminals in the history of America."
That promise, opinion polls suggested, proved broadly popular with the American people, including with legal immigrants, who felt that too many people were coming into the country the "wrong way".
Since taking office, the president has widened the scope of his mission, targeting not just criminals, but migrant workers, some student activists and even tourists with visa issues.
For almost five months, these moves met little resistance. But now parts of Los Angeles have erupted in protests after immigrations officers intensified their raids at workplaces.
But who are the migrants caught up in these raids? And who else has the administration targeted?
