Janine Herbst

And they're using a simple technique, Japanese rice paper that's been dipped in distilled water and then applied to the fresco to remove the film.

That film comes from the many visitors to the Vatican museums.

I'm Janine Herbst, NPR News in Washington.

Live from NPR News in Washington, I'm Janine Herbst.

President Trump says Iran's supreme leader is dead, though Iran hasn't confirmed his death.

A source tells NPR it happened in Israeli strikes.

The U.N.

Security Council is meeting an emergency session today over the U.S.

and Israeli military strikes on Iran.

The Secretary General is urging diplomats to help bring the region back from the brink, as NPR's Michelle Kellerman reports.

And in Tehran, some residents say security forces reinforced their presence in the streets after the attacks.

NPR's Jaina Raff has more.

An effort to limit the ability of the president to carry out sustained military action in Iran without the approval of Congress is taking on a new urgency.

NPR's Sam Greenglass explains.

And you're listening to NPR News.

President Trump is ordering the U.S.

government to cut ties with AI maker Anthropic and stop using its products.

Defense Secretary Pete Hegseth designated the company a supply chain risk.

This after Anthropic said it wanted assurances that the military would not use its AI for fully autonomous weapons or for domestic surveillance.

Anthropic says it will challenge the supply chain risk designation in court.