In 2005, Harry Barko, an employee of government contractor Kellogg Brown & Root (KBR), filed a False Claims Act complaint. KBR, which at the time was a subsidiary of Halliburton, provided military support services in Iraq. Barko alleged that KBR was inflating costs and receiving kickbacks.
This case, for which Barko filed a cert. petition with the U.S. Supreme Court, isn't even about all that yet. This is a case about the limits of attorney-client privilege.