Why Aren't the Feds Frog-Walking Tyson Foods Executives?

Recently, Department of Homeland Security's Secretary made a big deal out of federal agents arresting seven current and former managers of IFCO Systems North American, Inc. for conspiring to transport, harbor, and encourage and induce illegal aliens to reside in the United States for commercial advantage and private financial gain.
Chertoff noted that the conspiracy charge carries a penalty of up to 10 years in prison and a fine of up to $250,000 for each alien they're responsible for hiring. Two other IFCO employees were arrested on criminal charges relating to fraudulent documents.
Under the current administration, interior and work site enforcement have been virtually abandoned with the exception of extremely isolated and highly publicized raids such as the IFCO busts.

During Bush's term of office his people steadfastly refused to enforce a variety of immigration laws. President Bush created the impression that our immigration laws can't be enforced by convincing the American public that the only alternative to amnesty and guest workers is mass deportation.
Now, I'm not going to denigrate DHS's efforts to enforce immigration laws. However, when we have companies such as Tyson Foods closing plants because they expect their illegal alien workers to partake in protests, boycotts and demonstrations, why aren't the Immigration and Customs Enforcement agents swarming all over their facilities?
Perhaps the reason Tyson Foods openly hires illegal aliens is that it's head honchos are tight with the Clintons and President George W. Bush.
Tyson Foods' financial records show that they had been funding former US president Bill Clinton in many of his political campaigns, beginning back at the time when Clinton was Governor of Arkansas. Don Tyson was one of Bill Clinton's closest friends and biggest supporters, according to grand jury testimony concerning Tyson's political misconduct. And Don Tyson was Bill Clinton's top fundraiser during his governorship and presidential elections.
Joe Henrickson, a former Tyson airplane pilot, admitted to transporting endless envelopes of cash from Tyson corporate offices to Governor Clinton, money that doesn't figure in the annual accounting system.
Also, Tyson Foods was fined $6 million as a result of confessing their donation of at least $12,000 in cash and gifts to a former US Agricultural Secretary. Information supplied by Tyson Foods chief counsellor James Blair to Hilary Clinton on a swine futures market deal enabled the First Lady to make an overnight profit of approximately $100,000.
More recent records show that Tyson was a big contributer to President Bush's campaigns, as well. More importantly, President Bush generally favored plans to give millions of illegal immigrants a chance at US citizenship without leaving the country, but does not want to be more publicly supportive because of opposition among conservative House Republicans, according to senators who attended a recent White House meeting.

Is change just changing the pocket that get's filled