RSA

The United States is marking 25 years since the September 11, 2001 terrorist attacks, with commemorations honoring the nearly 3,000 victims. Campus and community observances describe the country as being in mourning, reflecting on the lasting impact of the attacks on American society, security policy, and collective memory a quarter-century later.

Daniel Gultsch, developer of the Android XMPP chat app Conversations, has announced the app is breaking up with Google Play and is now free. The move ends distribution through Google's app store, and the essay explains the reasoning behind leaving the platform and making the app available at no cost.

SpaceX has completed a launch rehearsal of its Starship system at Starbase, Texas, in preparation for the upcoming Flight 14 test. The wet dress rehearsal, which fuels the rocket without launching it, is a key preflight milestone. Space enthusiasts and analysts are watching closely to see what improvements the next flight will demonstrate and when it might lift off.

The Warsaw Rights Forum has returned, convening human rights advocates at a moment when organisers and participants describe civic space as narrowing. The gathering is expected to focus on pressures facing civil society, from restrictions on assembly to shrinking room for independent voices, and to coordinate responses across the region.

Ambassador Mike Waltz says the United States held conversations with China regarding dealings connected to the Iran conflict. The comments point to diplomatic contact between Washington and Beijing over the war, though details of what was discussed have not been made public. The remarks come amid heightened attention to Iran and the international role of major powers in the conflict.

The United Nations is preparing an event to mark the 25th anniversary of the 2001 World Conference against Racism held in Durban, South Africa. The anniversary commemoration is drawing attention because the original Durban conference remains controversial, particularly over debates about Israel and antisemitism at the 2001 gathering.

A news segment examines the state of scientific knowledge on chronic traumatic encephalopathy, the brain condition linked to repeated head impacts in contact sports. The report outlines what researchers have established so far and highlights the significant gaps that remain, including how to diagnose CTE in living patients and who is most at risk. The topic continues to draw attention amid ongoing concern over head injuries in football and other sports.

Protesters gathered outside the ICE Processing Center in Pearsall, Texas, in a demonstration against the facility and US immigration enforcement. Local outlet KSAT reported on the rally, which adds Pearsall to the list of Texas cities where immigration detention sites have drawn public protests. Details on the size of the crowd, the organisers and specific demands were not immediately reported.

NBCUniversal is reportedly considering a move into video games as Comcast prepares to separate the media company into a standalone entity. The plan would mark a significant push into gaming for the studio behind major franchises, though no official announcement or details on timing and investment have been confirmed.

A new cryptography paper describes a method for forging 1024-bit RSA signatures in a time close to the special number field sieve bound, narrowing the margin of safety for the key size. The work, published on the IACR eprint archive, is drawing attention from security researchers assessing whether 1024-bit RSA keys remain adequate for legacy systems.

A Washington Post opinion column argues that a foreign policy which rewards adversaries while taking allies for granted ultimately leaves a country isolated. The piece contends that siding with rivals over long-standing partners erodes trust, pushes friendly nations to hedge or look elsewhere, and weakens a state's own influence. The argument is resonating amid ongoing debates about alliance management and great-power competition.