A federal investigation based in Madison reveals that the U.S. military health insurance program has been swindled out of more than $100 million over the past decade in the Philippines. Prosecutors say doctors, hospitals and clinics conspired there to submit bogus claims.

So far, 17 people have been convicted. Twenty others have been indicted but remain in the Philippines.

Madison-based WPS Health Insurance holds the contract to process claims for the program known as Tricare, which insures just over 9 million current and former service members and dependents worldwide.

Investigators say health care providers filed claims for medical services never delivered, inflated claims and shared kickbacks with retirees who played along.

Pentagon auditors also say Tricare moved slowly to uncover and stop the fraud.