The Terrorist Watchlist!

Where can average Americans go to share terrorism-related information? The Information Sharing Environment. The ISE provides analysts, operators, and investigators with integrated and synthesized terrorism, weapons of mass destruction, and homeland security information needed to enhance national security and help keep our people safe.

Creating an environment of more efficient terrorism-related information sharing is a key mission of the PM-ISE. Consequently, by supporting the ability of front line screening agencies to positively identify known or suspected terrorists trying to obtain visas, enter the country, board aircraft, or engage in other activity, the consolidated Terrorist Watchlist is one of the most effective counterterrorism tools for the U.S. government. A number of federal government agencies participate in this mission process:

• The National Counterterrorism Center manages the Terrorist Identities Datamart Environment (TIDE), which serves as the U.S. government’s central repository of information on international terrorist identities as established by the Intelligence Reform and Terrorism Prevention Act of 2004. TIDE supports the USG’s various terrorist screening systems or “watchlists” and the U.S. Intelligence Community’s overall counterterrorism mission.
• The Terrorist Screening Center (TSC) maintains the U.S. government’s consolidated Terrorist Watchlist - which supports the ability of front line screening agencies to positively identify known or suspected terrorists trying to obtain visas, enter the country, board aircraft, or engage in other activity. While undertaking these activities, TSC is also dedicated to ensuring the data it stores is maintained in a manner consistent with protecting the privacy and civil liberties of Americans.
• Similarly, the Transportation Security Administration&nbsp uses Secure Flight, an aviation security program that enhances the security of domestic and international commercial air travel through the use of improved watchlist matching.
• The Department of State is updating the Worldwide Caution to provide information on the continuing threat of terrorist actions and violence against U.S. citizens and interests throughout the world. U.S. citizens are reminded to maintain a high level of vigilance and to take appropriate steps to increase their security awareness. This replaces the Worldwide Caution dated April 10, 2014. 
• 2013 saw the launch of a fully interactive web based Political Risk Map. The map is supported by Quantitative Country Analytics (QCA) from Roubini Global Economics, which allows systematic analysis of political risk around the world. It is unique in that it follows a three layered approach in analysing political risk (excluding EU and OECD countries).

Source:  http://www.ise.gov/terrorist-watchlist