President Trump has ordered a 15% tariff on imported products made with polysilicon, a key material for semiconductors and solar panels. The new tariff will take effect on December 4th. The Guardian reports: The executive order signed by the president on Thursday evening said: "The plan of action in this proclamation will, among other things, help ensure the commercial viability of United States production of polysilicon and its derivatives that is necessary to meet United States economic and national security requirements." Polysilicon, an ultra-pure form of silicon, is an important ingredient in making the semiconductors vital for AI processing power, datacentres and solar power generation. US solar factories have long accused Chinese rivals of dumping cheaper panels on the market, which they say have been enabled by excessive government subsidies and by moving manufacturing to other countries to dodge US tariffs. [...] The US has two main polysilicon factories, including Hemlock Semiconductor, which operates a plant in Michigan and is a joint venture between the US tech company Corning and Japan's Shin-Etsu Handotai. The Munich-based Wacker Chemie runs a factory in Tennessee. Trump said in the order that he had accepted recommendations by the commerce secretary, Howard Lutnick, to set minimum import prices of $21 a kilogram for polysilicon, $100 a kilogram for polysilicon ingots and wafers, $0.22 a watt for solar cells, and $0.38 a watt for solar modules or panels. The order also allows the commerce department to create an incentive program for companies that invest in factories to produce polysilicon or derivative products.

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An anonymous reader quotes a report from Ars Technica: The Federal Communications Commission voted 2-1 today to eliminate the National Television Ownership Rule, claiming authority to repeal a limit that was set by Congress over 20 years ago. The rule prohibits any single broadcast station owner from reaching more than 39 percent of all TV households in the US. Under Chairman Brendan Carr, the FCC is replacing the rule with a "case-by-case review" of each proposed merger. "This will empower the FCC to approve deals that promote the public interest while allowing the agency to reject any deals that do not meet that standard," Carr's office said in a press release today. Without the 39 percent rule, broadcasters will be better able to compete against streaming companies that don't face similar limits, Carr's office said. The change, if not stopped by courts, will make it easier for Carr to allow broadcast mergers that result in more favorable news coverage for President Trump. Carr has consistently threatened to revoke licenses from broadcasters who have drawn Trump's ire, including by ordering an early license review of all ABC-owned stations. Carr said local broadcast TV stations are becoming "undifferentiated passthroughs of national programming produced in Hollywood and New York," and he justified repealing the ownership rule by arguing it will help the stations invest in local news. "It's worth noting that Republicans with deep firsthand knowledge of this issue also agree the commission cannot do what it is attempting today," said Democratic FCC Commissioner Anna Gomez, who voted against the decision today. "Former FCC Commissioner Mike O'Rielly has been unequivocal that the FCC lacks authority to change the cap. Former House Majority Leader Tom DeLay, who negotiated the 39 percent compromise, has stressed that Congress intentionally wrote the cap into law to prevent FCC revision. And Senate Commerce Chair Ted Cruz has said he is 'skeptical a change can be made absent an act of Congress.' Their consensus reinforces a simple point: Congress set the cap, and only Congress can change it." Gomez, in addition to arguing that "Congress deliberately enshrined the cap in statute and removed it from the Commission's review process," said removing the cap will hurt local broadcasters. "Digital giants compete for their most valuable programming and advertising, while consolidation pressures at the national level threaten the local reporting and public-safety functions on which communities rely," Gomez said. "But eliminating the cap does not free local broadcasters from that strain. It just changes who is doing the squeezing. A handful of station-group giants does not represent the wishes of local broadcasters. They are large national companies that own local stations and increasingly dictate what airs on them without much local input. Trading a squeeze from Big Tech for a squeeze from Big Media does nothing to protect the communities this cap was designed to serve."

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An anonymous reader quotes a report from Ars Technica: Several US senators have written a letter to the Commodity Futures Trading Commission (CFTC), inquiring about the agency's "plans to crack down on prediction markets" that offer "contracts for individuals to bet on wildfires." "Offering bets on destructive wildfires threatens to minimize communities' suffering, all so the rich and powerful can profit," wrote (PDF) the group of senators, who represent Oregon, California, Nevada, Minnesota, and New Hampshire. The document specifically cites that Polymarket hosted bets in January 2025 on the wildfires in Los Angeles, and it mentions another website which specifically accepts "simulated bets" exclusively on California wildfires. "There's also the heightened risk -- according to state and local fire officials -- that individuals could be tempted to commit arson in order to make sure their bets are successful," the letter continues. "By offering contracts on fires, prediction market sites run the risk of encouraging people to influence fires that have already started, creating additional concerns around public safety and insider trading." [...] Kalshi spokesperson Elisabeth Diana told Ars by email that the company does not allow such wildfire markets "because they create perverse incentives." But its primary rival, Polymarket, has taken a different approach. A spokesperson for Polymarket told Ars in an emailed statement that the company does not "profit from outcomes," adding that people "come to Polymarket for information." "While we are not blind to the risks, removing these markets does not prevent a tragedy but makes the most accurate information less accessible to the people who need it most," he wrote.

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