From Feet in 2 Worlds:  

Many researchers said their work was motivated in part by the desire to put a human face on a population that is often overlooked or referred to mainly in statistical terms. "Research that promotes a positive view of immigrants has not been predominant," complained Leo Chavez, a professor of anthropology at the University of California, Irvine.  
 
For the full story, please visit http://feetin2worlds.wordpress.com/2009/10/20/under-the-microscope-academics-seek-to-put-a-human-face-on-undocumented-hispanic-immigrants/.