I see nothing new. Here's story over 6 months ago:
"...
Eagleburger, who was on Dresser’s board of directors before it merged with Halliburton, told me, “I can’t fault Cheney as such on asbestos, but somebody slipped up somewhere in the due diligence. Somebody should have caught it.”

The Dresser merger also raised ethical questions. The United States had concluded that Iraq, Libya, and Iran supported terrorism and had imposed strict sanctions on them. Yet during Cheney’s tenure at Halliburton the company did business in all three countries. In the case of Iraq, Halliburton legally evaded U.S. sanctions by conducting its oil-service business through foreign subsidiaries that had once been owned by Dresser. With Iran and Libya, Halliburton used its own subsidiaries. The use of foreign subsidiaries may have helped the company to avoid paying U.S. taxes.
..."
http://www.newyorker.com/fact/content/?040216fa_fact

Despite the endless raving by the wackos, Cheny did nothing wrong and basically was good CEO for Halliburton.
Btw, Halliburton is responsible for lowering government costs [saving tax dollars], removing soldiers from non miltary tasks, and did their job faster and better than if Govt had used soldiers to do the various tasks. Of course it's no wonder that Dem hate this company- it successfully moved govermental type jobs into the private sector.