document: As part of our undercover investigation, we produced counterfeit documents before sending our two teams of investigators out to the field. We found two NRC documents and a few examples of the documents by searching the Internet. We subsequently used commercial, off-the-shelf computer software to produce two counterfeit NRC documents authorizing the individual to receive, acquire, possess, and transfer radioactive sources. To support our investigators’ purported reason for having radioactive sources in their possession when making their simultaneous border crossings, a GAO graphic artist designed a logo for our fictitious company and produced a bill of lading using computer software. Our two teams of investigators each transported an amount of radioactive sources sufficient to manufacture a dirty bomb when making their recent, simultaneous border crossings. In support of our earlier work, we had obtained an NRC document and had purchased radioactive sources as well as two containers to store and transport the material. For the purposes of this undercover investigation, we purchased a small amount of radioactive sources and one container for storing and transporting the material from a commercial source over the telephone. One of our investigators, posing as an employee of a fictitious company, stated that the purpose of his purchase was to use the radioactive sources to calibrate personal radiation detectors. Suppliers are not required to exercise any due diligence in determining whether the buyer has a legitimate use for the radioactive sources, nor are suppliers required to ask the buyer to produce an NRC document when making purchases in small quantities. The amount of radioactive sources our investigator sought to purchase did not require an NRC document. The company mailed the radioactive sources to an address in Washington, D.C. On December 14, 2005, our investigators placed two containers of radioactive sources into the trunk of their rental vehicle. Our investigators – acting in an undercover capacity – drove to an official port of entry between Canada and the United States. They also had in their possession a counterfeit bill of lading in the name of a fictitious company and a counterfeit NRC document. At the primary checkpoint, our investigators were signaled to drive through the radiation portal monitors and to meet the CBP inspector at the booth for their primary inspection. As our investigators drove past the radiation portal monitors and approached the primary checkpoint booth, they observed the CBP inspector look down and reach to his right side of his booth. Our investigators assumed that the radiation portal monitors had activated and signaled the presence of radioactive sources. The CBP inspector asked our investigators for identification and asked them where they lived. One of our investigators on the two-man undercover team handed the CBP inspector both of their passports and told him that he lived in Maryland while the second investigator told the CBP inspector that he lived in Virginia. The CBP inspector also asked our investigators to identify what they were transporting in their vehicle. One of our investigators told the CBP inspector that they were transporting specialized equipment back to the United States. A second CBP inspector, who had come over to assist the first inspector, asked what else our investigators were transporting. One of our investigators told the CBP inspectors that they were transporting radioactive sources for the specialized equipment. The CBP inspector in the primary checkpoint booth appeared to be writing down the information. Our investigators were then directed to park in a secondary inspection zone, while the CBP inspector conducted further inspections of the vehicle. During the secondary inspection, our investigators told the CBP inspector that they had an NRC document and a bill of lading for the radioactive sources. The CBP inspector asked if he could make copies of our investigators’ counterfeit bill of lading on letterhead stationery as well as their counterfeit NRC document. Although the CBP inspector took the documents to the copier, our investigators did not observe him retrieving any copies from the copier. Our investigators watched the CBP inspector use a handheld Radiation Isotope Identifier Device (RIID), which he said is used to identify the source of radioactive sources, to examine the investigators’ vehicle. He told our investigators that he had to perform additional inspections. After determining that the investigators were not transporting additional sources of radiation, the CBP inspector made copies of our investigators’ drivers’ licenses, returned their drivers’ licenses to them, and our investigators were then allowed to enter the United States. At no time did the CBP inspector question the validity of the counterfeit bill of lading or the counterfeit NRC document. On December 14, 2005, our investigators placed two containers of radioactive sources into the trunk of their vehicle. Our investigators drove to an official port of entry at the southern border. They also had in their possession a counterfeit bill of lading in the name of a fictitious company and a counterfeit NRC document. At the primary checkpoint, our two-person undercover team was signaled by means of a traffic light signal to drive through the radiation portal monitors and stopped at the primary checkpoint for their primary inspection. As our investigators drove past the portal monitors and approached the primary checkpoint, they observed that the CBP inspector remained in the primary checkpoint for several moments prior to approaching our investigators’ vehicle. Our investigators assumed that the radiation portal monitors had activated and signaled the presence of radioactive sources. The CBP inspector asked our investigators for identification and asked them if they were American citizens. Our investigators told the CBP inspector that they were both American citizens and handed him their state-issued drivers’ licenses. The CBP inspector also asked our investigators about the purpose of their trip to Mexico and asked whether they were bringing anything into the United States from Mexico. Our investigators told the CBP inspector that they were returning from a business trip in Mexico and were not bringing anything into the United States from Mexico. While our investigators remained inside their vehicle, the CBP inspector used what appeared to be a RIID to scan the outside of the vehicle. One of our investigators told him that they were transporting specialized equipment. The CBP inspector asked one of our investigators to open the trunk of the rental vehicle and to show him the specialized equipment. Our investigator told the CBP inspector that they were transporting radioactive sources in addition to the specialized equipment. The primary CBP inspector then directed our investigators to park in a secondary inspection zone for further inspection. During the secondary inspection, the CBP inspector said he needed to verify the type of material our investigators were transporting, and another CBP inspector approached with what appeared to be a RIID to scan the cardboard boxes where the radioactive sources was placed. The instrumentation confirmed the presence of radioactive sources. When asked again about the purpose of their visit to Mexico, one of our investigators told the CBP inspector that they had used the radioactive sources in a demonstration designed to secure additional business for their company. The CBP inspector asked for paperwork authorizing them to transport the equipment to Mexico. One of our investigators provided the counterfeit bill of lading on letterhead stationery, as well as their counterfeit NRC document. The CBP inspector took the paperwork provided by our investigators and walked into the CBP station. He returned several minutes later and returned the paperwork. At no time did the CBP inspector question the validity of the counterfeit bill of lading or the counterfeit NRC document. We conducted corrective action briefings with CBP and NRC officials shortly after completing our undercover operations. On December 21, 2005, we briefed CBP officials about the results of our border crossing tests. CBP officials agreed to work with the NRC and CBP’s Laboratories and Scientific Services to come up with a way to verify the authenticity of NRC materials documents. We conducted two corrective action briefings with NRC officials on January 12 and January 24, 2006, about the results of our border crossing tests. NRC officials disagreed with the amount of radioactive material we determined was needed to produce a dirty bomb, noting that NRC’s “concern threshold” is significantly higher. We continue to believe that our purchase of radioactive sources and our ability to counterfeit an NRC document are matters that NRC should address. We could have purchased all of the radioactive sources used in our two undercover border crossings by making multiple purchases from different suppliers, using similarly convincing cover stories, using false identities, and had all of the radioactive sources conveniently shipped to our nation’s capital. Further, we believe that the amount of radioactive sources that we were able to transport into the United States during our operation would be sufficient to produce two dirty bombs, which could be used as weapons of mass disruption. Finally, NRC officials told us that they are aware of the potential problems of counterfeiting documents and that they are working to resolve these issues. Mr. Chairman and Members of the Subcommittee, this concludes my statement. I would be pleased to answer any questions that you or other members of the Subcommittee may have at this time. For further information about this testimony, please contact Gregory D. Kutz at (202) 512-7455 or kutzg@gao.gov. Contact points for our Offices of Congressional Relations and Public Affairs may be found on the last page of this testimony. This is a work of the U.S. government and is not subject to copyright protection in the United States. 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summary: Given today's unprecedented terrorism threat environment and the resulting widespread congressional and public interest in the security of our nation's borders, GAO conducted an investigation testing whether radioactive sources could be smuggled across U.S. borders. Most travelers enter the United States through the nation's 154 land border ports of entry. Department of Homeland Security U.S. Customs and Border Protection (CBP) inspectors at ports of entry are responsible for the primary inspection of travelers to determine their admissibility into the United States and to enforce laws related to preventing the entry of contraband, such as drugs and weapons of mass destruction. GAO's testimony provides the results of undercover tests made by its investigators to determine whether monitors at U.S. ports of entry detect radioactive sources in vehicles attempting to enter the United States. GAO also provides observations regarding the procedures that CBP inspectors followed during its investigation. GAO has also issued a report on the results of this investigation (GAO-06-545R). For the purposes of this undercover investigation, GAO purchased a small amount of radioactive sources and one secure container used to safely store and transport the material from a commercial source over the telephone. One of GAO's investigators, posing as an employee of a fictitious company located in Washington, D.C., stated that the purpose of his purchase was to use the radioactive sources to calibrate personal radiation detection pagers. The purchase was not challenged because suppliers are not required to determine whether prospective buyers have legitimate uses for radioactive sources, nor are suppliers required to ask a buyer to produce an NRC document when purchasing in small quantities. The amount of radioactive sources GAO's investigator sought to purchase did not require an NRC document. Subsequently, the company mailed the radioactive sources to an address in Washington D.C. The radiation portal monitors properly signaled the presence of radioactive material when our two teams of investigators conducted simultaneous border crossings. Our investigators' vehicles were inspected in accordance with most of the CBP policy at both the northern and southern borders. However, GAO's investigators, using counterfeit documents, were able to enter the United States with enough radioactive sources in the trunks of their vehicles to make two dirty bombs. According to the Centers for Disease Control and Prevention, a dirty bomb is a mix of explosives, such as dynamite, with radioactive powder or pellets. When the dynamite or other explosives are set off, the blast carries radioactive material into the surrounding area. The direct costs of cleanup and the indirect losses in trade and business in the contaminated areas could be large. Hence, dirty bombs are generally considered to be weapons of mass disruption instead of weapons of mass destruction. GAO investigators were able to successfully represent themselves as employees of a fictitious company present a counterfeit bill of lading and a counterfeit NRC document during the secondary inspections at both locations. The CBP inspectors never questioned the authenticity of the investigators' counterfeit bill of lading or the counterfeit NRC document authorizing them to receive, acquire, possess, and transfer radioactive sources.