At the request of elected officials, the US Government Accountability Office audits governments. It stated that it had recommended that the US Department of Homeland Security increase data sharing from the country's Trade Transparency Units (TTU) and the US Department of Homeland Security. The TTU collects US financial data and custom data to detect suspicious trade transactions. GAO discovered that the TTU was "... lacking opportunities to better analyze and distribute information from US Customs Data , which could assist enforcement agencies in identifying suspect activities. Laundering or over-invoicing is often used to launder trade-based money. Banks can't always access open-account trades. They don't have the ability to keep up with all goods' true market value. Global Financial Integrity is a think tank based in America. It recently estimated that invoice mistakes between developing countries, and their trading partners, totaled U...