Back to Agua Prieta
A group of migrant workers abandon their attempt to cross into the United States near Douglas, Arizona, and head back to the town of Agua Prieta, Mexico, in this photo taken in 2005.
Their reason for turning back may have been the increased attention paid to border security, including the construction of a wall along populated parts of the southern border.
This year, these migrants might not even have come. When the financial crisis began in 2007-08, word spread that work would be more difficult to find, and fewer illegal immigrants made the long, hazardous journey from Central America.
The federal government has also been deporting illegal immigrants at nearly twice the rate of the previous administration.
About 11 million immigrants from all continents are believed to be living illegally in the United States, down from a high of 15 million during the past decade.