The 2013 Boston Marathon bombing motivated mass expressions of fear, solidarity, and sympathy toward Bostonians on social media networks around the world. In a recently released study, researchers analyzed emotional reactions on Twitter in the hours and weeks following the attack. The study is the first large-scale analysis of fear and social-support reactions from geographically distant communities following a terrorist attack. The full results of the study may provide insight to governmental agencies exploring how best to handle public fear following a disruptive event.

A 17-year-old Brandon High School student in Oakland County, Michigan has been arrested and accused of posting online threats using the anonymous app, After School. The Oakland County Sheriff’s office contacted the app provider and served subpoenas to identify the anonymous user who posted seventeen messages and five pictures, ranging from “Tomorrow I am going to shoot and kill every last one of you and it’s going to be bigger than Columbine,” “Death to you all,” and “Bang Bang Brandon Bang Bang,” to stock photos of a person holding a pump-action shotgun.As of Thursday evening, Apple has pulled the After School app from its App Store.

The long-awaited report on the CIA interrogation practices was release yesterday, causing a political storm. Many congressional Republicans have expressed concern over the release of the Senate report on the CIA’s use of torture on captured al-Qaeda and Islamist militants, claiming it would set off a global backlash, and threaten the security of American troops and diplomatic missions overseas.Obama administration officials agree that the release of the Senate report or its declassified executive summary is a good reason for concern about the security of U.S. facilities and military bases overseas, but they doubt it would lead to the sort of violence that killed four Americans at a diplomatic outpost in Benghazi, Libya in 2012.

Last week the Pentagon publicly expressed its concerns about the fact the ISIS has established a base of operation in Libya. The commander of the U.S. army’s Africa Command told reporters that ISIL (ISIS) is now running training camps in the town of Derna, 450 miles east of Tripoli, where as many as 200 local fighters are receiving instruction. “ISIL has begun its efforts over in the east out there,” said General David Rodriguez. “It’s mainly about people coming for training and logistics support right now.”

Al-Qaeda’s ideology can be broken down into two parts: First, al-Qaedists believe that the Islamic world is at war with a transnational Crusader-Zionist conspiracy which includes states hostile to the Islamic world. Among them are the United States and the rest of the West, Israel, Russia, and even India and China. It is this “far enemy,” and not the local despots (the “near enemy”) who do its bidding that should be the target of jihad. Al-Qaeda also opposes the division of the Islamic world into individual nation states which, they claim, is a trick perpetrated by the Crusader-Zionist conspiracy to keep the Islamic world weak and divided. What is al-Qaeda’s current state? If one looks at al-Qaeda not as an entity but as a tendency within a broader jihadi movement, it might be argued that the groups that operate as al-Qaeda affiliates, wannabes, and copycats have profited from the Arab uprisings in terms of expanding their operations and digging in, although in the process many have jettisoned many of the central tenets of the original cohort. This might be evolution, but it is just as likely to mark the deterioration or even the dissolution of the al-Qaeda wing of the jihadi movement.

Why do young people from Western societies join ISIS? Terms such as “brainwashing” and “radicalization” are typically and casually invoked to explain the phenomenon. Suggestions of brainwashing or radicalization imply that the object of such efforts has been profoundly diverted from their usual, reasonable way of thinking. The instigators of this mental trickery are implicitly credited with considerable psychological skill, while the target is simultaneously assumed to have some mental insufficiency or vulnerability. The young are commonly deemed to be easy prey for those seeking to enlist them for a “radical” cause. The problem is, it’s just not that simple. Arguing that a 15 or 16-year-old is able to make a reasoned choice about engagement in hostilities risks exposing that young person to the full force of the law – but using loose, inadequate concepts such as brainwashing and radicalization to explain young people’s engagement in political violence carries its own risks. It severely limits our ability to understand why young people are mobilized in support of a group such as Islamic State, and hinders intelligent debate about the wider changes needed to prevent them doing so. Moreover our efforts to reintegrate them once they come back are likely to prove desperately inadequate.

Lone wolf terrorist attacks in the United States are not on the rise as popular culture might lead one to believe — but the attacks are changing for the worse, according to new research. The targets, weapons, and motives have changed in recent years. Before 9/11, these terrorists used bombs, but now high-velocity firearms are the weapon of choice, he said. The change might be a result of legislation enacted after the Oklahoma City bombing limiting the public’s access to bomb-making ingredients. Police and military personnel are now the preferred targets of modern lone wolf terrorists. Domestically, attacks on the power grid are the next big threat, the researchers say. Lone wolf terrorist Jason Woodring successfully downed the electric transmission system of rural Arkansas in 2013. His vandalism affected 10,000 people and cost $3 million in repairs.

The journey into and out of terrorism is as personal as it is complex. De-radicalization programs still represent some of the most creative approaches to counter-terrorism. They can be powerful forces in thinning the ranks of lower-level members. But if we do not have a sincere discussion of why or how they work, their future will be in jeopardy. With rumors of hundreds of disillusioned ex-ISIS members exploring a potential return home, we are already way behind. We need clear thinking to underpin these programs and their evaluation. In the absence of transparency and clearer expectations, it will only take one-high profile failure (would any program survive if one of its graduates detonated a suicide bomb closer to home?) for the potential of these programs to be lost forever.

The U.K. government unveils today (Wednesday) sweeping new measures to combat extremism and terrorism, and tackle radicalization, in the United Kingdom. Among other measures, the new counterterrorism bill will require schools and universities to exclude radical speakers from their campuses, and give the home secretary the powers to deny entry (or re-entry) to the United Kingdom to U.K. British citizens suspected of involvement in terrorism-related activity abroad. These citizens’ travel documents will be cancelled and their names placed on no-fly lists for up to two years. Home Secretary Theresa May said: “We are engaged in a struggle that is fought on many fronts and in many forms. It is a struggle that will go on for many years. And the threat we face right now is perhaps greater than it ever has been. We must have the powers we need to defend ourselves.”