Ukrainian authorities are growing frustrated with a surge in foreign components being found in Russian drones, with a senior diplomat calling on allies to tighten sanctions controls as Moscow scales up military production. Vladyslav Vlasiuk, Ukrainian President Volodymyr Zelenskyy's special envoy on sanctions, said the European Union's sanctions regime is showing cracks as enforcement is carried out by member states rather than the bloc as a whole -- even as the Kremlin expands large-scale aerial attacks. We would like the European Union to step up exports control for European companies," Vlasiuk said in an interview in Kyiv. In a time of both misinformation and too much information, quality journalism is more crucial than ever. By subscribing, you can help us get the story right.

Communicative efficiency is a key topic in linguistics and cognitive psychology, with many studies demonstrating how the pressure to communicate with minimal effort guides the form of natural language. However, this phenomenon is rarely explored in signed languages. This paper shows how handshapes in American Sign Language (ASL) reflect these efficiency pressures and provides new evidence of communicative efficiency in the visual-gestural modality. We focus on hand configurations in native ASL signs and signs borrowed from English to compare efficiency pressures from both ASL and English usage. First, we develop new methodologies to quantify the articulatory effort needed to produce handshapes and the perceptual effort required to recognize them. Then, we analyze correlations between communicative effort and usage statistics in ASL or English. Our findings reveal that frequent ASL handshapes are easier to produce and that pressures for communicative efficiency mostly come from ASL usage, rather than from English lexical borrowing.