There are plenty of unanswered questions in the unfolding investigation into why the Air Force dumped the remains of war dead in a Virginia landfill.

The Washington Post broke the landfill story last month, and on Thursday, reported that the Air Force has acknowledged that the practice had led to the incineration and disposal of far more partial remains than initially believed at a site in King George County.

But one as-yet unanswered question confounds even some of those most familiar and comfortable with discussing the disposal of human body parts and medical waste.

Why would the Air Force follow cremation of remains with incineration? Why process those remains twice?

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