This is the one place where there should be no problems. From the WashPo/AP:
...More than 300,000 people are buried at Arlington National Cemetery, including service members from the Civil War as well as Iraq and Afghanistan.
Army Secretary John McHugh told a Pentagon press conference that the investigation found 211 graves where there were problems of misidentification or improper record keeping...
...Problems first came to light in 2008 when the widow of a fallen staff sergeant complained that the wrong headstone had been placed on her husband's grave. An investigation found that an Air Force master sergeant had been buried in the same spot, on top of the other service member.
John Metzler, the cemetery superintendent, announced last month that he intended to retire on July 2. But Defense officials said Metzler and his deputy, Thurman Higgenbotham, have been forced out. Both may face punitive action, according to Defense officials...
Thoughts and prayers to the affected families.