The 9/11 Commission has released a new report as it marks the 10th anniversary of its original review.
Representatives from the Bipartisan Police Center, the Annenberg Public Policy Center, and victims' families joined the 9/11 Commission in Washington Tuesday.
Contributors to the new report say the United States continues to face terror threats that need to be closely monitored.
"Today, we face the most diverse threats I've seen in my 50—now 51 years—in the intel business," said Director of National Intelligence James Clapper.
"We have ISIS taking over large swaths of territory in the Middle East. Syria is an incubator for terrorists training and hatred around the world. People starting to come back from the training grounds to the United States. Al Qaeda, now—pre-9/11, they were in a few countries. Now, they are in 16 countries around the world," said Timothy J. Roemer of the 9/11 Commission.
The report also says policy makers need to be aware of the different types of threats that are possible, including cyber attacks.