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How uncrewed narco subs could transform the Colombian drug trade

MIT Technology Review

Fast, stealthy, and cheap--autonomous, semisubmersible drone boats carrying tons of cocaine could be international law enforcement's nightmare scenario. A big one just came ashore. Colombian military officials intercepted this 40-foot-long uncrewed fiberglass "narco sub" in the ocean just off Tayrona National Park. On a bright morning last April, a surveillance plane operated by the Colombian military spotted a 40-foot-long shark-like silhouette idling in the ocean just off Tayrona National Park. It was, unmistakably, a "narco sub," a stealthy fiberglass vessel that sails with its hull almost entirely underwater, used by drug cartels to move cocaine north. The plane's crew radioed it in, and eventually nearby coast guard boats got the order, routine but urgent: Intercept. In Cartagena, about 150 miles from the action, Captain Jaime González Zamudio, commander of the regional coast guard group, sat down at his desk to watch what happened next.


Royal Navy returns to wind power with trial of robotic sailboats

New Scientist

Oshen's robotic sailboats are powered by the wind and the sun The UK's Royal Navy may return to the age of sail, with a new demonstration involving a flotilla of small, wind-propelled robot boats. Made by Oshen in Plymouth, UK, the vessels, known as C-Stars, are just 1.2 metres long and weigh around 40 kilos. Solar panels power navigation, communications and sensors, while a sail provides propulsion. Deployed as a constellation, the small vessels act as a wide-area sensor network. How the US military wants to use the world's largest aircraft "The simplest way of describing C-Stars is as self-deploying, station-keeping ocean buoys," says Oshen CEO Anahita Laverack .


A Dataset Card

Neural Information Processing Systems

Table 4 contains the full set of topics for the k " 30 LDA model introduced in 4. Personal 7.96% ive, didnt, thing, bit, thought, week, wanted, started, pretty, id Art 2.70% art, design, de, images, ikea, image, painting, collection, piano, photo 14 C Most Frequent T op-Level Domains Figure 8: Manually labeled images with watermarks and images related to logos or ads. Sentence Image CLIP Similarity Our new service for teams to manage their fleets for racing.


Brunswick's latest boats at CES 2026 feature edge AI, self-docking capabilities and solar power

Engadget

The future of boating is here, but it ain't cheap. If you've never docked a boat before, consider yourself lucky. There are plenty of popular TikTok channels devoted to shaming those who bring their craft back home clumsily or berth them with something less than finesse. Tricky crosswinds, unpredictable surf and even the jeers of passersby can make it a stressful experience at the best of times. Brunswick, which owns more than 50 water-borne brands like Sea Ray, Bayliner and Mercury Marine, has a solution. It's demonstrating some self-docking tech called AutoCaptain at CES 2026 that makes this process a cinch, plus a fleet of other innovations that, in some cases, leave some of the smart cars on the show floor looking a bit remedial.


Trump says US hit 'big facility' linked to alleged Venezuelan drug boats

BBC News

Trump says US hit'big facility' linked to alleged Venezuelan drug boats Donald Trump has said the US has carried out a strike on a dock area linked to alleged Venezuelan drug boats. The US president said there had been a major explosion where they load the boats up with drugs - but did not give more details. Venezuela's government is yet to respond. The explosion was caused by a drone strike carried out by the CIA, CNN and the New York Times reported, citing sources familiar with the matter. If confirmed, it would be the first known US operation inside Venezuela.


Who built Scandinavia's oldest wooden plank boat? An ancient fingerprint offers clues.

Popular Science

Science Archaeology Who built Scandinavia's oldest wooden plank boat? An ancient fingerprint offers clues. Archeologists are closer to solving the Hjortspring Boat's mysteries. Breakthroughs, discoveries, and DIY tips sent every weekday. Archaeologists examining an ancient boat discovered in Denmark over a century ago are getting some help from a clue usually associated with crime scenes .

  Country:
  Genre: Research Report > New Finding (0.36)
  Industry: Media > Photography (0.31)

They're sweets, but not as you know them - why freeze-dried candy is trending

BBC News

What are freeze-dried sweets and why are they popular? When Savannah Louise West first tasted freeze-dried gummies, she was intrigued. I think the crunch is so satisfying, and I find it interesting to experience a candy I'm familiar with that has an entirely new texture, says the Toronto resident. Ms West is describing one of the main features of this spin-off candy that independent and major confectionary manufacturers have been releasing onto shelves, both online and offline, for the past three years. It's been largely a US phenomena, hence we'll use the US term candy, but for our UK readers, we're talking about sweets here.


What legal experts say about second US strike on Venezuela boat

BBC News

Several legal experts have told BBC Verify that the second strike on an alleged Venezuelan drug boat by the US military was probably illegal, and would likely be considered an extrajudicial killing under international law. On Monday, the Trump administration confirmed that a follow-up strike on the boat - which has been criticised as a double tap - was ordered by US Navy Admiral Frank Bradley with the overall operation having been authorised by War Secretary Pete Hegseth. Nine people died in the first strike on the vessel and two survivors were left clinging to the burning wreckage when it was struck again, killing them, according to the Washington Post. A US official has said four missiles were used in the operation. The Trump administration has not denied there were survivors and has insisted the strikes on 2 September were in accordance with the law of armed conflict.


Multigranular Evaluation for Brain Visual Decoding

Xia, Weihao, Oztireli, Cengiz

arXiv.org Artificial Intelligence

Existing evaluation protocols for brain visual decoding predominantly rely on coarse metrics that obscure inter-model differences, lack neuroscientific foundation, and fail to capture fine-grained visual distinctions. To address these limitations, we introduce BASIC, a unified, multigranular evaluation framework that jointly quantifies structural fidelity, inferential alignment, and contextual coherence between decoded and ground-truth images. For the structural level, we introduce a hierarchical suite of segmentation-based metrics, including foreground, semantic, instance, and component masks, anchored in granularity-aware correspondence across mask structures. For the semantic level, we extract structured scene representations encompassing objects, attributes, and relationships using multimodal large language models, enabling detailed, scalable, and context-rich comparisons with ground-truth stimuli. We benchmark a diverse set of visual decoding methods across multiple stimulus-neuroimaging datasets within this unified evaluation framework. Together, these criteria provide a more discriminative, interpretable, and comprehensive foundation for evaluating brain visual decoding methods.


A Derivations of Variational Inference and ELBO A.1 Derivation of optimal q ()

Neural Information Processing Systems

We expand Eq. 10 as: q There are three KL divergence terms in our training objective ELBO (Eq. Medium and Y elp Large datasets, we follow (Guu et al., 2018) to use a three-layer attentional LSTM Skip connections are also used between adjacent LSTM layers. We apply annealing and free-bits techniques following (Li et al., 2019) to the KL term on prototype variable, As in Section 4.3, here we show more generated examples through interpolation on MSCOCO dataset. Table 6: Qualitative examples from the MSCOCO dataset on interpolated sentence generation given the prototype.