Today's top stories, with context, in just 15 minutes.

On today's podcast:
1) President Trump issued increasingly aggressive threats to destroy Iran’s power plants starting Tuesday and bring “Hell” to the country following the rescue of a US airman more than a day after his fighter jet was shot down. Iran rejected Trump’s latest ultimatum to reopen the Strait of Hormuz, saying it would only fully resume operations when war damage is compensated. Tehran continued striking energy targets in Gulf neighbors, including Kuwait’s oil headquarters. Trump, in renewing his threats to target Iran’s civilian infrastructure, used an expletive in a social media post and told Axios he would be “blowing up everything over there” if Iran doesn’t make a deal. He said he plans a news conference at 1 p.m. on Monday and posted about a Tuesday 8 p.m. deadline, without offering details.

2) Japanese Prime Minister Sanae Takaichi said she is looking to hold talks with Iran’s leader and possibly also a separate call with President Trump, as the clock ticks on the US president’s latest threat to bomb key Iranian infrastructure. “We are currently making preparations for leadership level talks,” Japan’s Takaichi said of talks with Iran during a parliamentary session Monday. “We will continue to do everything in our power to find an off-ramp to this situation and return to peace.” Takaichi’s comments came with Trump warning Tehran that the US will bomb Iranian power plants unless it opens up the Strait of Hormuz, a choke point through which Japan secures over 90% of its oil. Takaichi said that Japan would do what it can ahead of the Tuesday ultimatum set by Trump, suggesting that she was also seeking a phone call with Trump, though nothing has been finalized yet. Whether Japan can help defuse tensions or even play a mediation role remains unclear, but the nation has a key interest in maintaining a working relationship with a country that currently controls passage through the Strait of Hormuz.

3) Saudi Arabia has raised the price of its main oil grade to Asia to a record high premium, as a widening conflict in the Persian Gulf and Iran’s near-closure of the Strait of Hormuz convulse energy markets. State oil producer Saudi Aramco will increase flagship Arab Light crude prices for May sales to a premium of $19.50 over regional benchmarks for refiners in Asia, according to a price list seen by Bloomberg. Still, the level is less than the $40 a barrel premium anticipated by traders and refiners in a Bloomberg survey. The gap with market expectations is in part because of a volatile market, and as prices of some Middle Eastern grades dipped in the last week of March, according to traders. Aramco’s oil is also priced for loading in the Persian Gulf port of Ras Tanura, though all of the company’s exports are currently being shipped from the port of Yanbu on the Red Sea coast. Buyers typically incur additional costs to collect those barrels.