An increasingly common setting in machine learning involves multiple parties, each with their own data, who want to jointly make predictions on future test points. Agents wish to benefit from the collective expertise of the full set of agents to make better predictions than they would individually, but may not be willing to release labeled data or model parameters.

A source trapped inside an industrial-scale scamming operation contacted me, determined to expose his captors' crimes--and then escape. It was a perfect June evening in New York when I received my first email from the source who would ask me to call him Red Bull. He was writing from hell, 8,000 miles away. A summer shower had left a rainbow over my Brooklyn neighborhood, and my two children were playing in a kiddie pool on the roof of our apartment building. Now the sun was setting, while I--in typical 21st-century parenting fashion, forgive me--compulsively scrolled through every app on my phone. The message had no subject line and came from an address on the encrypted email service Proton Mail: "vaultwhistle@proton.me." I'm currently working inside a major crypto romance scam operation based in the Golden Triangle," it began. "I am a computer engineer being forced to work here under a contract." "I've collected internal evidence of how the scam works--step by step," the message ...

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Iranian drone swarms pose serious threat to U.S. military assets as reports emerge that Iran's Supreme Leader has gone underground, according to military drone expert Cameron Chell.

Travel chaos warning as hazardous'radiation fog' alert is issued in three states Real reason Bill Hader and Ali Wong's two-year relationship ended: Insiders reveal open secret about him in Hollywood... his cruel nickname... and his month from hell after Reiner murders horror It's madness NOT to annex Greenland: SCOTT JENNINGS spells out, as only he can, why America must act... before its enemies strike Kendall Jenner finally breaks silence on the rumors she's secretly a lesbian Real reason ICE refused to let medics rush to aid of Renee Nicole Good after she was shot dead in her car... as shocking video spread like wildfire The foods that actually block the body from gaining weight... even in people who eat high-fat diets Shocking study linking covid jabs and cancer'censored' by mysterious cyberattack Peppers will help protect you from the'super flu'... but which color you eat matters I gave up a middle-class family life at 40 to become an escort. Years later I discovered a common condition that affects so many women was to blame. Painful cause of death revealed for adorable child, 4, found dead in the woods two miles from dad's home Insiders reveal how the Reiner family decided to ax'despicable' Nick's legal fund: 'He's on his own' No nonsense uncle humiliates rude women for singing and talking during Broadway performance of Mamma Mia! - then has them thrown out of theater The REAL Princess Catherine: On her birthday, an intimate portrait of her marriage, how she finally solved the Meghan problem, her brave cancer fight... and a thrilling new rumor about her in America'Best medical drama ever' rockets up the Netflix charts as'broken' fans left sobbing by'perfect' ending after binge-watching every episode Inside NASA's high-stakes plan to evacuate astronauts from the ISS after medical emergency NASA is preparing to conduct its first-ever medical evacuation from the International Space Station (ISS), activating a contingency plan to return a crew to Earth months ahead of schedule. The plan, developed decades ago for medical emergencies in space, has never before been implemented during an ISS mission, agency officials said Thursday. Under the program, the returning astronauts will seal themselves inside the capsule, undock from the ISS, perform a controlled departure and reenter Earth's atmosphere for a parachute-assisted splashdown in the Pacific Ocean off the California coast.

President Trump's favourite word is tariffs. He reminded the world of that in his pre-Christmas address to the nation. With the world still unwrapping the tariffs gift from the first year of his second term in office, he said they were bringing jobs, higher wages and economic growth to the US. What is less debatable is that they've refashioned the global economy, and will continue to do so into 2026. The International Monetary Fund (IMF) says that although the tariff shock is smaller than originally announced, it is a key reason why it now expects the rate of global economic growth to slow to 3.1% in 2026.