WASHINGTON: US Defense Secretary Pete Hegseth warned on Tuesday of possible prosecutions of former senior advisers who were fired during a probe into leaks of Pentagon information to the media, saying evidence would be handed over to the Department of Justice once the investigation is completed.
Dan Caldwell, who was one of Hegseth’s top advisers, and two other senior officials were fired on Friday after being escorted out of the Pentagon. But they have denied any wrongdoing and said they have been told nothing about any alleged crimes.
Hegseth, who has come under fire for using unclassified messaging system Signal to discuss plans to attack Yemen’s Houthi group, left open the possibility that individuals could be exonerated during the investigation but played down those chances.
“If those people are exonerated, fantastic. We don’t think — based on what we understand — that it’s going to be a good day for a number of those individuals because of what was found in the investigation,” Hegseth told Fox News.
Hegseth said there had been a number of leaks that triggered the investigation, including about military options to ensure US access to the Panama Canal and Elon Musk’s visit to the Pentagon.
“We said enough is enough. We’re going to launch a leak investigation,” Hegseth said.
“We took it seriously. It led to some unfortunate places, people I have known for quite some time. But it’s not my job to protect them. It’s my job to protect national security.”
He said evidence would eventually be handed over to the Department of Justice.
“When that evidence is gathered sufficiently — and this has all happened very quickly — it will be handed over to the DOJ and those people will be prosecuted if necessary,” Hegseth said.
Caldwell had played a critical role as an adviser to Hegseth and his importance was underscored in a leaked text chain on Signal disclosed by The Atlantic last month.
In it, Hegseth named Caldwell as the best staff point of contact for the National Security Council as it prepared for the launch of strikes against the Houthis in Yemen.
On Sunday, news emerged of a second Signal chat, a disclosure that Hegseth and other officials have blamed on former Pentagon employees.
Despite growing calls from Democrats for Hegseth to resign, President Donald Trump has stood firmly by his defense secretary.
John Ullyot, who was ousted from his job as a Pentagon spokesperson after two months, said on Sunday that Hegseth’s Defense Department was in “total chaos.”
“The dysfunction is now a major distraction for the president — who deserves better from his senior leadership,” Ullyot wrote in an opinion piece in Politico.
Asked about Ullyot’s remarks, Hegseth said: “He’s misrepresented a lot of things in the press. It’s unfortunate.”

HANOI: Vietnam’s trade ministry has ordered authorities to tighten control over the origin of goods to avoid sanctions by trading partners in the wake of threatened US tariffs, according to a document seen by AFP on Tuesday.
A document by the ministry dated April 15 said escalating trade tension meant Vietnam was increasingly exposed to trans-shipment fraud.
Less than two weeks earlier, US President Donald Trump had threatened massive 46 percent levies on Vietnam, with Washington accusing the country of facilitating Chinese exports to the United States and allowing Beijing to get around tariffs.
In the document, the ministry called for stricter controls to avoid “sanctions that countries may apply on goods imported to their countries.”
“Uniform and determined measures are required... to stop and prevent fraud in the origin of goods... especially illegal imported raw materials and goods without origin for the production of goods for export,” it added, without naming China.
Hanoi is now trying to negotiate with Trump over the so-called reciprocal tariffs, which have been paused until July.
On Tuesday, Prime Minister Pham Minh Chinh urged for “negotiations to promote balanced, stable, sustainable, and effective trade relations with the United States.”
He warned however that the talks were “not to affect another market.”
China on Monday said it “firmly opposes” other countries making trade deals with the United States at Beijing’s expense, warning it would take “countermeasures” against them.
During his visit to Vietnam last week, China’s President Xi Jinping urged the communist neighbor to join forces in upholding free trade.
Trump, however, said the trip was aiming to “screw” the United States.
Vietnam was Southeast Asia’s biggest buyer of Chinese goods in 2024, with a bill of $161.9 billion.
In the first three months of this year, the United States was Hanoi’s biggest export market.
Vietnam has long pursued a “bamboo diplomacy” approach — striving to stay on good terms with both China and the United States.