the problems at the cemetery, but also assigned some blame to staff and budget cutbacks. Higginbotham declined to answer questions from the committee, citing the 5th Amendment, and was dismissed from the proceeding. SHSGA member Claire McCaskill stated that up to 6,600 gravesites at the cemetery could be mislabeled or improperly marked. In September 2010, the Army found two bodies buried in the wrong plots. The Army plans to check more plots. In December 2010 the Army announced that it had launched a criminal investigation into the misplacement of remains at the cemetery. The investigation was initiated after the discovery in October 2010 of eight urns containing remains in a single grave marked "unknown." Some of the urns in the grave may have been previously discovered in other parts of the cemetery. The Army announced in March 2011 that three of the sets of remains in the urns could not be identified. In June 2011, it was revealed that the Federal Bureau of Investigation had been asked to assist in the investigation into burial of the urns as well as into allegations of contract fraud at the cemetery. On December 16, 2010, the U.S. House of Representatives passed a bill, previously approved by the U.S. Senate, requiring the Army to provide Congress with an accounting of all 320,000 graves at the cemetery. The bill also requires a report on contracts issued to digitize the cemetery's records and a study on whether the cemetery's administration should be transferred to the Department of Veterans Affairs. The purpose of the bill was to formally establish congressional oversight into correcting the problems identified at the cemetery. On 31 January 2011, the Northern Virginia Technology Council released the report of its three-month investigation into record keeping at the cemetery. The report concluded that, "Antiquated paper record-keeping and lack of oversight led to the mishandling of dozens of remains at the nation's most important military burial ground" and recommended that "the cemetery must digitize its records, improve its scheduling system and establish a rigorous chain of custody for remains as they move from funeral homes to burial." Two months later, Arlington officials admitted that the cemetery had for years informally maintained a system of "plot booking"setting aside choice burial plots for high-ranking military officers and civilian officialsin violation of Army regulations. Although the plot booking system was suspended in 1962, The Washington Post reported in March