According to reports, the Department of Homeland Security (DHS) is developing a program to collect and search a wide array of personal, public and classified information, similar to a program killed by Congress in 2002. The Analysis, Dissemination, Visualization, Insight, and Semantic Enhancement (ADVISE) program would implement a massive data mining program to prevent terrorist attacks; the program, however, continues to lack the necessary oversight structure and procedures to protect privacy and safeguard civil liberties.