On Monday, March 22, Tyson Foods completed its internal audit of its Dakota City plant.  The audit uncovered another 100 names of immigrants that may have been working illegally.  Tyson Foods has investigated a total of 350 immigrants since the audit began in March.  The employees must produce valid work documentation in order to return to work. 

According to Tyson, the loss of undocumented workers has lowered efficiency and temporarily hurt the company.  Tyson conducts at least two audits annually at its plants and one annual corporate audit. 

*****

Rafael Antonio Peralta, Honduran national who has a temporary residence permit received a letter in early March ordering him to surrender at the Miami immigration building on April 5 for deportation or expulsion.  On March 19, federal immigration officials at the U.S. Immigration and Customs Enforcement agency admitted that the letter was a mistake and would be corrected.