NEW : Study 's findings , others say , is n't just regional . Low - income Latinos in the South victims of discrimination , exploitation , study finds . Forty - seven percent of victims claim to know someone mistreated by police . Federal government moves to strengthen immigration enforcement , crack down on racial discrimination .
NEW : Study 's author , others say problem is n't just regional . Low-income Latinos in the South victims of discrimination , exploitation , study finds . Forty-seven percent of respondents claim to know someone mistreated by police . Federal government urged to strengthen labor laws , crack down on racial profiling .