In addition to the arrests, federal agents also searched a midlevel executive's office at Wal-Mart's Bentonville, Ark., headquarters, leaving with boxes of files, the company said.
[link|http://www.ajc.com/print/content/epaper/editions/today/business_f31a7f9f94e731890076.html|Atlanta Journal-Constitution]
Wal-Mart denies it knew that subcontractors were hiring illegal immigrants, in this case mostly from Mexico. Federal agents say they have wiretaps proving otherwise.
[link|http://www.chicagotribune.com/news/opinion/chi-0311010220nov01,1,7806645.story|Chicago Tribune]
But two federal law enforcement officials said in interviews that Wal-Mart executives must have known about the immigration violations because federal agents rounded up 102 illegal immigrant janitors at Wal-Marts in 1998 and 2001. In the October raid, federal agents searched the office of an executive at Wal-Mart's headquarters, carting away boxes of papers. Federal officials said prosecutors had wiretaps and recordings of conversations between Wal-Mart officials and subcontractors.
[link|http://www.nytimes.com/2003/11/05/national/05WALM.html|NY Times]
As Orion has discovered, links can disappear too quickly when a story has "legs".