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A U.S. Air Force B-52 bomber. Photo: Mindaugas Kulbis / AP

The U.S. has weapons that could dismantle North Korean missiles by firing microwave energy to interfere with ground controls and power circuits within the missiles themselves, NBC reports, citing sources with knowledge of a White House conversation related to the North Korean threat.

The details, per NBC: The microwave weapons can be fit onto air-launched cruise missiles and released from B-52 bombers. They can fly into enemy airspace at low altitudes to fire off microwaves. A word of caution: We have no real indication as yet that such a strategy would be attempted, or prove effective, if the situation should arise.

Go deeper

Updated 11 mins ago - Politics & Policy

Senators grill top Pentagon leaders over Biden's Afghanistan exit

Photo: Carolone Brehman/Pool/AFP via Getty Images

Defense Secretary Lloyd Austin, Joints Chiefs of Staff Chairman Gen. Mark Milley, and the head of U.S. Central Command, Gen. Frank McKenzie, are testifying before Congress for the first time since the chaotic U.S. withdrawal from Afghanistan.

The latest: Austin said in his opening statement that military leaders began planning for a non-combatant evacuation of Kabul as early as the spring, and that this is the only reason U.S. troops were able to start the operation so quickly when the Taliban captured the city. "Was it perfect? Of course not," Austin acknowledged.

Congress must raise the debt limit by Oct. 18, Yellen warns

U.S. Treasury Secretary Janet Yellen during a press conference at the Capitol on Sept. 23. Photo: Sarah Silbiger/Bloomberg via Getty Images

Treasury Secretary Janet Yellen told House Speaker Nancy Pelosi in a letter Tuesday that the United States will likely begin to default on its loans shortly after Oct. 18 if Congress fails to raise or suspend the debt ceiling by then.

Why it matters: The U.S. has never defaulted on its financial obligations, and Yellen has previously warned that doing so would cause irreparable damage to the U.S. economy and global financial markets.

Ben Geman, author of Generate
43 mins ago - Energy & Environment

The energy crises roiling Europe and China — and beyond

Data: FactSet; Chart: Axios Visuals

Energy crises in Europe and China are spilling into economic forecasts, supply chains and beyond.

Driving the news: Europe has for weeks been facing sky-high natural gas and power prices, while China — the world's second-largest economy — is facing electricity shortages that are hobbling factories.