Recent years saw the emergence of different foreign and now domestic extremist movements — whether motivated by Jihadi preaching or white nationalism — which have adopted and actively advocated via social media a strategy which encourages “lone wolves” to engage in individual acts of violence against a large number of designated enemies.

The Islamic State has discovered blockchain. The technology which powers cryptocurrencies like bitcoin and ethereum promises to revolutionize almost all facets of society, from payment processing to online voting. David Gilbert writes that now ISIS is actively testing a blockchain-based messaging app that could provide everything it needs to thrive: secure, anonymous communication, a tamper-proof repository for beheading videos and other ISIS propaganda, and perhaps most ominously, the ability to transfer cryptocurrency anywhere in the world.

The Washington Post last week released 611 documents as part of an investigative project called “The Afghanistan Papers.” Carrie Lee writes that the revelations “are in many cases shocking”: “The trove — a combination of interview notes, memos, and emails — strongly suggests that the U.S. government systematically misled the American people about military, diplomatic, and economic progress in Afghanistan.”

Artificial intelligence is being developed which will allow advisory “quarantining” of hate speech in a manner akin to malware filters – offering users a way to control exposure to “hateful content” without resorting to censorship.

German government statistics show that in 2018 there were more than 24,000 active right-wing extremists in Germany, with about 12,500 of them considered capable of carrying out violent acts. The total number of these extremists is expected to increase in 2019 by as much as a third, to 32,200, according to government documents obtained by the newspaperTagesspiegel. On Tuesday, The German government unveiled broad new measures to restructure domestic intelligence and law enforcement agencies in 2020 in order to make the German intelligence and law enforcement services more capable to fight the rising threat of right-wing extremism.

The deadly shooting by a Saudi national last week at the Naval Air Station Pensacola in Florida has raised questions about radicalization in Saudi Arabia’s military ranks. According to the U.S. State Department, more than 5,500 temporary visas were issued to Saudi military personnel in 2019 alone. As of last week, 852 Saudi nationals were in the U.S. for Pentagon-sponsored training on security cooperation.

The architect of the U.K. government program for moving convicted terrorists from prison into the community says the current system lacks the “legitimacy and credibility” required to rehabilitate extremists safely. His assessment follows the attack at London Bridge by convicted terrorist Usman Khan, who was out on license from prison when he killed Jack Merritt, 25, and Saskia Jones, 23, and injured three others during a meeting of the Cambridge University rehabilitation initiative Learning Together on 29 November.

Last Friday, Usman Khan, a 28-year-old British national who was released from prison on parole in December 2018 after serving eight years for terrorism offenses, killed two people a machete near London Bridge. Earlier in the day, at the same site, he had attended an alumni celebration event hosted by the organizers of Cambridge University’s Learning Together program, having been invited to share his experiences as a former prisoner.Simon Cottee writes that the question raised by Khan, who was killed by police as he fled the scene of his attack, is about redemption and whether it’s either right or prudent to give convicted terrorists a second chance. “I have some degree of sympathy for this view [that everyone should be given second chance], but it needs to be massively tempered with a keen sense of not just what is right but also what is prudent” he writes.

Usman Khan, a 28-year old terrorist who on Friday killed two people on the London Bridge before being killed by the police, served time in jail for “terrorist offenses” and was monitored by the British police. Ian Acheson, who, in 2016, at the request of then-Justice Minister Michael Gove, led a team of investigators who wrote a detailed and highly critical report about the way radicalized Islamist terrorists are managed in jail and after their release, writes: “What we found was so shockingly bad that I had to agree to the language in the original report being toned down. With hindsight, I’m not sure that was the right decision.”