Federal investigators have uncovered many examples of corruption, waste, overbilling and bad workmanship.

NPR: Rebuilding Iraq: A Contract Goes Awry

And even some of these have been suspected of overbilling their federal paymasters.

ECONOMIST: For-profit medicine

Most recently, Rep. Henry Waxman, a California Democrat, accused the company of overbilling the government for fuel it imports into Iraq.

CNN: Halliburton asks employees to help defend company

The government is trying to clamp down on overbilling by managed-care firms.

ECONOMIST: American health

Most of the complaints it cited were about overbilling, not poor coverage.

ECONOMIST: Telecommunications in Brazil

On Oct. 3, 2001, the day prosecutors announced the settlement, they filed criminal fraud charges accusing TAP executives of perpetrating the overbilling scheme.

FORBES: Magazine Article

Texas authorities are seeking to revoke Andrew Campbell's medical license, alleging a pattern of misdiagnosing patients with occupational or mold-related illnesses, overbilling and excessive testing.

FORBES: Magazine Article

Hubbell, a longtime friend of President Bill Clinton, served 18 months in prison for mail fraud and tax evasion in a case involving overbilling of law clients.

CNN: Navigation