Destruction via burn bags is considered superior to shredding, because shredded documents may be reconstructed. After the capture of the United States embassy in Tehran during the Iran hostage crisis, shredded documents were turned over for painstaking manual reconstruction, which revealed to Iran some U.S. operations including spies. A picture of one such reassembled document can be seen at the George Washington University website. Today, scanners and computers can reconstruct shredded documents very quickly. Burn bags are designed to facilitate the destruction process by not requiring the removal of the items to be destroyed beforehand and by indicating if the items require special procedures.