Failed Times Square bomber Faisal Shahzad appeared on a Department of Homeland Security travel lookout list - Traveler Enforcement Compliance System (TECS) - between 1999 and 2008 because he brought approximately $80,000 cash or cash instruments into the United States, said a CBS News report.
TECS is a major law enforcement computer system that allows its approximately 120,000 users from 20 federal agencies to share information. The database is designed to identify individuals suspected of or involved in violation of federal law.
The system has been recently called inefficient by members of Congress, the report notes. In late March, Senator Joe Lieberman of Connecticut and Susan Collins of Maine criticized the system in a letter to DHS, writing that, "Current functionality does not allow interoperability among databases, fast searching of information, modern interfaces for users of the system, or sufficient security to protect critical terrorist travel data."
A modernization of the system began in 2008 and is expected to be completed by 2015.