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US begins development of first new nuclear warhead in four decades for submarine fleet

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The United States has commenced work on developing its first new nuclear warhead in approximately 40 years. According to reporting by the publication Interesting Engineering, the US Navy and the National Nuclear Security Administration (NNSA) are designing a new nuclear warhead, designated the W93/Mk7, to replace aging components within the existing arsenal.

The new warhead is projected to operate compatibly with submarine-launched missiles planned for future deployment.

The project is being executed as part of a comprehensive plan to modernize the sea-based leg of the US nuclear triad.

Within this process, the Navy aims to transition from its current Ohio-class submarines to the next-generation Columbia-class submarines.

In this context, work also continues on the Trident II D5 Life Extension 2 (D5LE2) program, which aims to extend the service life of the currently deployed Trident II D5 missiles.

The Trident II D5, which has been in the inventory since 1990, is ranked among the most reliable submarine-launched ballistic missiles.

Previous life-extension programs enabled the missile to remain in service until the 2040s.

However, due to the aging of components and evolving security requirements, component-by-component upgrades are reportedly no longer sufficient. Developed as a solution to this issue, the D5LE2 will feature a hybrid design that combines proven propulsion systems with updated avionics, guidance systems, and a new structural casing.

The program entered the engineering and manufacturing development phase in 2025, with the first missiles scheduled to enter service in fiscal year 2039.

The modernization plan, announced on June 25 by the US Navy’s Strategic Systems Programs Acquisition Planning Division (PAE SSP), also covers the United Kingdom’s Dreadnought-class submarines. This represents a continuation of the strategic nuclear cooperation between the two nations.

The renewal of sea-based assets constitutes part of a broader modernization process of the US nuclear triad, which encompasses land-based intercontinental ballistic missiles, strategic bombers, and nuclear submarines.

Due to their ability to remain concealed underwater for extended periods, submarines are considered the most survivable element of this triad. In preparation for the commissioning of the Columbia-class submarines, the Navy has also accelerated its infrastructure investments.

The land-based strategic weapon systems test facility reached full operational capacity at the end of 2024. Meanwhile, production capacity is being increased at facilities in Florida, Georgia, and Washington to support the D5LE2 program.

The PAE SSP is also continuing its work on future defense systems, such as the Conventional Prompt Strike project for hypersonic weapons and the sea-launched SLCM-N cruise missile.

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US banks post record $49 billion profit on AI boom and geopolitical volatility

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The five largest banks in the United States have reported record profits, driven by an artificial intelligence boom and market volatility triggered by conflict involving Iran.

JPMorgan, Bank of America, Goldman Sachs, Wells Fargo, and Citigroup generated a combined profit of $49 billion in the second quarter, according to data released last week.

SpaceX’s $85 billion initial public offering drew retail investors in waves, generating approximately $500 million for the underwriting banks involved in the transaction.

Market volatility surrounding the repeated opening and closing of the Strait of Hormuz, alongside ongoing debates over whether artificial intelligence represents a brighter future or an existential threat, also boosted bank revenues.

Revenues from significantly higher investment banking fees during a surge in mergers and acquisitions, alongside deals with artificial intelligence companies upgrading their infrastructure, further contributed to the gains.

However, JPMorgan Chase CEO Jamie Dimon tempered expectations during the bank’s earnings announcement.

While praising the “resilience” of the US economy and noting that business conditions were almost “as good as they can get”, Dimon also issued a warning.

“Several risks, including geopolitical tensions and wars, stubborn inflation, large global fiscal deficits, and high asset prices, are shifting beneath the surface like tectonic plates,” Dimon said.

“We cannot predict how these forces will ultimately play out,” Dimon added.

During Goldman Sachs’ earnings call, CEO David Solomon stated that the banking sector is “in the midst of an AI capital expenditure supercycle” driven by investments in artificial intelligence infrastructure.

Further artificial intelligence initial public offerings are also on the horizon. Anthropic’s upcoming listing will be led by Goldman Sachs and Morgan Stanley, while OpenAI has yet to decide which banks will lead its own process.

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AIPAC cuts online donation links for Democrats after Israel aid vote

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The political action committee of the American Israel Public Affairs Committee (AIPAC) has restricted online donations to several Democratic members of the US House of Representatives who voted this week to restrict military aid to Israel.

The move marks the latest division between the Democratic Party and the influential pro-Israel lobbying group.

As of Friday afternoon, donation buttons had been removed next to more than 10 Democratic lawmakers on the AIPAC political action committee’s online portal, which lists sitting members of Congress who “stand with Israel”.

Among those whose donation buttons were disabled on the portal are Representative Katherine Clark of Massachusetts, the second-ranking Democrat in the House; Representative Joe Neguse of Colorado, another member of the party leadership; and Representative Pat Ryan of New York, who announced after the vote that he would reject AIPAC funding.

“AIPAC members are deeply grateful to those representatives who take a principled stand and are disappointed by those who do not,” AIPAC spokesperson Deryn Sousa said in a statement to Politico.

The development is seen as further evidence of a major shift in political relations between AIPAC and House Democrats.

Ahead of the congressional midterm elections, several progressive left-wing candidates defeated primary opponents whom they had criticised for accepting financial support from AIPAC. This reinforced the view among some Democrats that associating with the pro-Israel lobby is politically damaging.

According to data from the Internet Archive, the donation buttons in question were last active on 6 July.

At that time, the portal also featured praise for the former House Speaker, Representative Nancy Pelosi of California. A note on the portal on 6 July, acknowledging that Pelosi would not seek re-election, read: “Thank you, Congresswoman Pelosi, for your support of the US-Israel relationship.”

As of Friday, this message of appreciation, along with a similar thank-you note dedicated to Pelosi’s California Democratic colleague, Representative Julia Brownley, had been removed from the website.

On Wednesday, more than 100 Democratic House members voted in favour of an amendment to the State Department budget bill aimed at cutting US military aid to Israel. This marked a significant fracture in what was once seen as the party’s unwavering support for the Jewish state.

Most of the lawmakers who supported the amendment cited their opposition to the way Israeli Prime Minister Benjamin Netanyahu is conducting the war in Gaza.

The amendment was rejected after 98 Democrats, including Minority Leader Representative Hakeem Jeffries of New York, voted against it.

Representative Pat Ryan, writing on social media platform X on Wednesday, said he expected groups like AIPAC to withhold support from his future election campaigns, adding: “To be honest, I don’t want their support anyway.”

In his post, Ryan also wrote: “Rigid approaches that refuse to stand up to the corrupt and increasingly dangerous Netanyahu regime have no place in our politics.”

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Data center energy demand drives up PJM grid auction costs by $6.3 billion

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The latest capacity auction conducted by PJM Interconnection, the largest electrical grid operator in the United States, has revealed that surging energy demand from data centers will add billions of dollars to electricity bills across 13 states in the coming years.

PJM released the results of its recent auction, which secures electricity capacity for a 13-state region for the period spanning June 2028 through May 2029.

Monitoring Analytics, the independent market monitor for PJM, determined that of the $16.4 billion in total capacity market costs resulting from the auction, approximately $6.3 billion is directly driven by the demand generated by data centers.

According to data from the market monitor, the demand from data centers has added a cumulative $29.4 billion to electricity costs across the last four PJM capacity auctions.

Joseph Bowring, the president of Monitoring Analytics, stated that the market watchdog’s position is that “data center load should be removed from the capacity market and procured through a special auction.”

“This method would allow data centers to access capacity through a market mechanism while ensuring they pay their own capacity costs, thereby preventing these costs from being shifted to other consumers,” Bowring said.

Consumer advocacy groups also expressed deep concern over the impact of data centers on electricity pricing following the release of the auction results.

“Right now, we are facing a wave of extreme and very rapidly growing demand driven by data centers, and the market was not prepared for this,” said Clara Summers, campaign manager for Consumers for a Better Grid.

Summers noted that while prices in this auction remained at levels similar to other recent auctions, consumers can expect their utility bills to remain comparably high for the foreseeable future.

Julia Kortrey, director of strategic initiatives for the state program at Evergreen Action, stated that the high prices have now become “largely locked in.”

“We are unlikely to see any relief until the 2030s from any moves PJM could make to improve the situation,” Kortrey said.

PJM operates the power grid serving 67 million people across the eastern and midwestern United States, covering Delaware, Illinois, Indiana, Kentucky, Maryland, Michigan, New Jersey, North Carolina, Ohio, Pennsylvania, Tennessee, Virginia, West Virginia, and the District of Columbia.

The grid operator announced that, as was the case in the previous auction for the 2027–2028 delivery year, it was unable to procure a sufficient amount of electricity capacity to meet its reliability targets.

To address this shortfall, PJM is requesting authorization from federal regulators to conduct a special “Backstop Procurement Auction.”

“These auction results demonstrate that electricity demand continues to grow faster than electricity supply,” David Mills, president and chief executive officer of PJM, said in a written statement.

“PJM is aware of the impact this supply and demand imbalance has on system reliability and consumer costs. We are working on multiple fronts with government and industry leaders to restore this balance by bringing new generation online as quickly as possible and managing the growth of new load on the grid,” Mills added.

While the statement did not reference data centers directly, PJM has recently reported that electricity demand from data centers represents the fastest-growing sector of load growth on its system.

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