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June 23 Roundup: Oil Sanctions Waived as IAEA Dispute Clouds Iran Deal, China Targets US Rare Earth Firms, First Nuclear Clocks

Iran Deal Follow-Through: Oil Waiver Signed, IAEA Claims Disputed#

The US Treasury on Monday issued a 60-day general license suspending all existing sanctions on Iranian crude oil, petroleum products, and petrochemicals — the first concrete implementation step from the Lucerne roadmap agreed the day before. The waiver runs through August 21 and, for the first time in decades, permits Iranian oil to be sold in US dollars to American buyers. Associated financial services — banking, insurance, shipping — are also covered. The license is a precondition baked into the June 17 memorandum of understanding, which tied sanctions relief directly to Iran permitting IAEA inspections and keeping the Strait of Hormuz open during the 60-day negotiating window.

The IAEA provision is already contentious. Vice President Vance told reporters Sunday that Iran had committed to allowing nuclear inspectors back into the country — a claim he called one of four concrete wins from Switzerland. Iran’s foreign ministry spokesman pushed back on Monday, saying “there is no visit scheduled for U.N. inspectors” and that nuclear details had only been “very briefly discussed” without any specifics agreed. Trump meanwhile posted that Iran had “fully and completely agreed to highest level nuclear inspections long into the future” — a characterization Tehran has not confirmed. Whether the 60-day clock starts with verified IAEA access or merely a promise of it could determine how durable this arrangement proves to be. The March Hormuz blockade and April ceasefire collapse both unraveled within weeks of similar announcements.

Sources: Al Jazeera — US partially lifts Iran oil sanctions (Jun 22) · WTOP — US Treasury 60-day license · CBS News — Vance live updates · Just Security — Early Edition Jun 23


China-US Tech War: Beijing Targets US Rare Earth Firms#

China’s Ministry of Commerce added ten US companies to its export control list on Monday in an explicit counter-move to the Pentagon’s earlier June decision to expand its “Chinese Military Companies” blacklist to roughly 80 firms — including Alibaba, Baidu, and BYD. Two of Beijing’s ten targets stand out: MP Materials and USA Rare Earth, the companies Washington has poured hundreds of millions of dollars into specifically to reduce American dependence on Chinese rare earth processing. The controls bar Chinese firms from selling dual-use goods to these entities, cutting them off from Chinese suppliers they still rely on for processing equipment and precursor materials.

The strategic logic is pointed. Rare earth elements — 17 metallic elements used in fighter jet engines, electric vehicle motors, and smartphone magnets — remain a chokepoint where China retains dominant global processing capacity despite years of US domestic mining investment. Targeting the US de-risking programs at their source signals Beijing’s willingness to undercut the supply-chain diversification effort before it matures. Defense contractors specializing in aerospace, drones, and synthetic-aperture radar also appeared on the list. Experts described the move as largely symbolic in immediate economic terms but consequential as an escalation signal in the bilateral technology war.

Sources: Al Jazeera — China adds 10 US firms (Jun 22) · Washington Post — China targets US rare earth companies (Jun 22) · IndexBox — rare earth controls detail


Science: World’s First Nuclear Clocks Begin Ticking#

Two independent research teams have built the world’s first working nuclear clocks, with results published in Nature on June 22. Beichen Huang and colleagues at Tsinghua University, and Luca Toscani De Col and colleagues at the Vienna Center for Quantum Science and Technology, both built their devices around thorium-229 nuclei embedded in calcium fluoride crystals, interrogated by vacuum-ultraviolet laser light. The clocks keep time by measuring energy transitions inside the atom’s nucleus — not its electron shell, as every existing atomic clock does. Extracting a usable “tick” from thorium-229 took more than twenty years of effort; thorium-229 is the only known nucleus whose energy jump happens to be the right size for laser interrogation.

The result matters for two distinct reasons. First, precision: nuclei are far better shielded from environmental disturbances than electrons, so nuclear clocks could ultimately out-perform even the best optical atomic clocks in robustness and portability. Second, fundamental physics: nuclear clocks are simultaneously sensitive to the strong force, the weak force, and electromagnetism — three of the four fundamental forces. That triple sensitivity makes them candidate instruments for dark matter searches and tests of the Standard Model. Theoretical physicist Gilad Perez described the breakthrough as taking nuclear clocks from a system with “potential” to “a functioning precision instrument” that can actually be used to probe new physics.

Sources: Nature — “The first ticking nuclear clocks are here” (Jun 22) · Live Science — first nuclear clock · phys.org — nuclear clocks tick for first time · Gizmodo — physicists build first nuclear clock


UK Labour: Race Opens July 9, Burnham Is Only Declared Candidate#

Following Keir Starmer’s resignation announced Monday — covered in yesterday’s roundup — the party NEC confirmed the nomination window opens July 9 and closes July 16, with a leader to be elected by September 1. Andy Burnham, who re-entered Parliament by winning the Makerfield by-election with 54.8% on June 18, has confirmed he will stand and remains the only announced candidate so far. Former Health Secretary Wes Streeting, briefly positioned as a rival, announced within hours of Starmer’s departure that he would back Burnham instead. Because Labour holds a substantial Commons majority, whoever wins the leadership contest becomes the next Prime Minister without a general election — making the next ten weeks an unusually direct exercise in choosing a head of government through a party vote.

Sources: Wikipedia — 2026 Labour Party leadership election · NPR — Andy Burnham wins by-election (Jun 19) · CNN — Burnham profile (Jun 20)

June 23 Roundup: Oil Sanctions Waived as IAEA Dispute Clouds Iran Deal, China Targets US Rare Earth Firms, First Nuclear Clocks
https://blog.lishuyu.app/posts/2026-06-23-daily-roundup-2026-06-23/
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猫猫魔女
发布于
2026-06-23
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CC BY-NC-SA 4.0