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The Pentagon has halted shipments of critical US Patriot air defence systems and other precision weapons to Ukraine after concern that US stockpiles are running too low, prompting alarm in Kyiv.

At the end of last week’s Nato summit, Donald Trump hinted that supplies of Patriot missile interceptors were running down because some had been supplied to Israel, though he suggested he would like to help Kyiv.

After a meeting with Ukraine’s Volodymyr Zelenskyy, the US president acknowledged that Ukraine did “want to have the anti-missile systems, as they call the Patriots, and we’re going to see if we can make some available”.

But Trump added: “They’re very hard to get. We need them. We were supplying them to Israel,” implying that supporting Israel in its war with Iran – a priority for the Republican administration – had set back its willingness to help Kyiv.

Masked immigration enforcers have swept through American cities in the months since President Donald Trump took office, using flash bangs during restaurant sweeps, slamming people’s heads into the ground, violently arresting gardeners on video, and provoking mass protests against their raids. This may only be the beginning.

The massive Senate budget bill, which passed on Tuesday and awaits a final House vote, gives Donald Trump’s administration the money to rapidly ramp up mass deportation to unprecedented levels, according to immigration experts.

U.S. Immigration and Customs Enforcement will have a budget for more officers than the FBI. The nation’s immigration detention centers will have more funding than the federal Bureau of Prisons.

There may be only one limit on how fast the Trump administration can spend: how quickly it can hire.

An 18-year-old French man who claimed affiliation with the misogynist “incel” movement has been arrested and placed under formal investigation on suspicion of planning attacks targeting women, France’s national anti-terrorist prosecutor’s office (PNAT) has said.

The arrest on Wednesday was part of PNAT’s first case linked to the “incel” (involuntary celibate) movement, an online network of men motivated to engage in violence against women whom they believe unjustly reject their sexual or romantic advances.

PNAT confirmed on Tuesday that it had opened a judicial investigation “against a young man, aged 18, claiming to be a member of the incel movement”, adding that he was being investigated for allegedly “associating with terrorist criminals to prepare one or more crimes against people”.

Original question by @[email protected]

Original question by @[email protected]

I think the alligators should unionize and demand fair compensation

This paper introduces DiffuCoder, a 7B-scale open-source masked diffusion large language model (dLLM) specifically designed for code generation.

The research provides insights into how dLLMs generate content, distinguishing their decoding behavior from that of autoregressive (AR) models. Unlike AR models, dLLMs can intrinsically adjust their generation causality and increasing sampling temperature diversifies not just token choices but also their generation order, creating a rich search space for reinforcement learning (RL).

This flexibility allows dLLMs to be more non-autoregressive and generate tokens in a less sequential, more "human-like" code writing manner.

To leverage this diversity and improve performance, the paper proposes coupled-GRPO RL algorithm. This method utilizes a coupled-sampling scheme that constructs complementary mask noise during training to reduce the variance of token log-likelihood estimates while maintaining training efficiency.

Experimentally, coupled-GRPO significantly boosts DiffuCoder's performance on code generation benchmarks, notably improving EvalPlus scores by 4.4% with training on only 21K samples. The research also shows that coupled-GRPO trained models experience a smaller performance drop when decoding steps are halved (resulting in a 2x speedup), indicating increased parallelism and reduced reliance on AR bias during decoding.

available at https://huggingface.co/apple/DiffuCoder-7B-cpGRPO