ISIS has made it clear that they want to launch an attack on U.S. soil. Despite the group's bloodlust, it is not necessarily the threat that most worries authorities whose job is protecting the homeland. Justice Correspondent Pamela Brown looks at the danger of so-called 'lone wolves' who are inspired and sometimes trained by al Qaeda.
When it comes to battling terror groups like ISIS, few tools are as effective as human intelligence. It took years to infiltrate key al Qaeda operatives. The CIA did it with the help of a double agent named Morten Storm.
Storm was a Danish boxer, who was radicalized after he converted to Islam. He quickly rose into the upper ranks of al Qaeda. When the large number of civilian deaths convinced him to turn on the group, Storm helped take out one of its top leaders, Anwar al-Awlaki.
CNN terrorism analyst Paul Cruickshank helped tell Storm's story. He is a co-author of the new memoir "Agent Storm: My Life Inside al Qaeda and the CIA."
The military success of ISIS has emboldened the radical military group to declare "Caliphate" - an Islamic state spanning large areas from Syria to Eastern Iraq and calling on other muslim groups to pledge their allegiance. The group also posted several propaganda videos online showing evidence of their advances against the Iraqi military. CNN's John Berman speaks with Senior International Correspondent Arwa Damon and Former FBI Supervisory Special Agent Ali Soufan about the latest on ground and how significant is ISIS' claim to leadership of the global Islamist movement.
A video that was recently posted on a jihadist web site shows an al Qaeda leader telling at least 100 followers that he wants them to attack the United States. It was shot in Yemen and it is raising serious questions about what the U.S. really knows about al Qaeda's operations. Barbara Starr has the latest.
Anderson discussed this with national security analyst Peter Bergen.
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A known bomb-maker working for one of al Qaeda's most-feared factions is at the center of the latest shoe bomb warning. A federal official tells CNN, al Qaeda in the Arabian Peninsula's master bomb-maker Ibrahim al Asiri may be working on new ways of putting explosives in shoes and other containers. National Security Correspondent Jim Sciutto explains what this means for air passengers.
The top U.S. intelligence chief says al Qaeda has morphed into at least five factions in a dozen countries. Director of National Intelligence James Clapper also warned that one of the groups has set up training camps in Syria to plan attacks on the United States. Anderson discussed all of this with National Security Analyst Peter Bergen.
We are learning more about the intercepted al Qaeda messages that triggered the closure of 19 U.S. Embassies around the world, and a string of drone attacks. Intelligence sources tell CNN, American code breakers recognized words they believed signaled an attack was imminent. Anderson discussed this latest information with national security analysts Fran Townsend and Peter Bergen and former senior CIA and FBI official Philip Mudd.
We are learning more about what may have triggered the global terror alert that closed U.S. embassies around the world. According to The Daily Beast it is a "virtual meeting" with more than 20 of Al Qaeda's top leaders, and it was intercepted by U.S. Intelligence. According to the report, one American official compared it to "a meeting of the Legion of Doom." Anderson spoke with Daily Beast National Security Reporter Josh Rogin who helped break the story, and Former Homeland Security Advisor Fran Townsend.
CNN has learned that a message sent from Al Qaeda leader Ayman Al Zawahiri to an affiliate leader was the deciding factor that led to the closure of American embassies, and triggered a global travel alert. But that was not the only intelligence that has U.S. counter-terror officials concerned. Anderson gets the latest from Philip Mudd a senior official with the CIA and FBI, National security analyst Peter Bergen, and terrorism analyst Paul Cruikshank.
Peter Bergen and CBS News' John Miller analyze Osama Bin Laden's son-in-law's terrorism case.
Read more about Sulaiman Abu Ghaith
Read the indictment
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