In the wake of the attacks in Brussels, the recently appointed Special Agent in Charge for the FBI division in Chicago joins “Chicago Tonight” to discuss the challenges in addressing terrorist threats.

He is a retired four-star general who has the distinction of being the only person to head both the NSA and CIA. In his new memoir, “Playing to the Edge,” Michael Hayden candidly reflects on his time at both agencies during the turbulent, post-9/11 war on terror. 

The FBI wants Apple to unlock an iPhone belonging to one of the people behind December's mass shooting in San Bernardino, California. Apple says it's taking a stand for privacy rights, while the FBI says it's merely trying to conduct the most thorough investigation possible.

In the wake of the deadly terror attacks in Paris, many Republican governors are saying they are unwilling to allow Syrian refugees to be settled in their states, among them Illinois Republican Gov. Bruce Rauner. Our panel discusses the refugee crisis and response.

Gov. Bruce Rauner announced on Monday that Illinois is temporarily closing its border to the settlement of Syrian refugees in the wake of the attacks in Paris.

A manhunt is underway in Europe for the suspects behind Friday's coordinated terrorist attacks in Paris. This weekend, the French military bombed an ISIS stronghold in Syria and French President Francois Hollande earlier today addressed a joint session of the French Parliament. We discuss the attacks and their aftermath with a panel of experts.

The shooting massacre at the Paris office of the satirical newspaper Charlie Hebdo has shaken the tenets of not only parody, but freedom of expression. Scott Dikkers is the founding editor of The Onion and served as editor-in-chief of the popular satirical news organization for 14 years. He joins us to discuss his experiences working in news satire, and how the deadliest attack France has seen since 1961 may affect the genre’s landscape.

A Malaysia Airlines plane crashes in the politically heated Ukrainian territory. Was it an accident or terrorism? And could the incident touch off new international tensions. 

The "NATO 3" have been acquitted of all terrorism-related charges. Instead, they were found guilty of much lesser mob action and arson charges. Read an article.

Were they violent terrorist conspirators or three angry young men entrapped by undercover cops? Paris Schutz has the details from opening day of the NATO 3 trial.

Three protesters who were accused of terrorism during the Chicago NATO summit in 2012 are in court today for the first day of their trial. Paris Schutz has the latest. Read the criminal complaint.

In the wake of disclosures by former National Security Agency analyst Edward Snowden of massive and pervasive government surveillance, we talk with two cybersecurity experts.

Retired Lt. Col. Ryan Yantis is a decorated survivor of the 9/11 attack on the Pentagon. In 2001, he was a Public Affairs Officer on duty at the Pentagon when American Airlines Flight 77 slammed into the building. He joins us 12 years after that fateful day.

The National Security Agency is collecting phone records of Verizon wireless customers. We dig through the legal implications of doing this, and if this truly is an effective way to counter terrorism.

We look at the charges against Dzhokhar Tsarnaev. What case can defense attorneys build for the suspect? What constitutional protections does he have? And how do terrorism cases differ from other charges? We have analysis.

The use of unmanned drone aircraft to strike alleged terrorists has been a signature element of President Obama's war on terror. But are the attacks legal? Eddie Arruza and his panel weigh in.