NPR News Now - April 23, 2026, 12PM EDT

Host: Libby Casey
Episode Overview:
This five-minute NPR News Now update delivers concise, rapid-fire coverage of the morning’s top global stories. Today’s report centers on escalating U.S.-Iran tensions, Congressional war powers debates, a CDC vaccine effectiveness reporting controversy, reforms in marijuana classification, an ICC ruling against a former Philippine president, and new scientific research on Gibraltar’s monkeys and a traveling comet.

Top Stories & Key Discussion Points

1. U.S.-Iran Conflict Escalates Over Strait of Hormuz

• [00:00] President Trump announces a new military order: U.S. forces are now directed to “shoot and kill any Iranian boats” deploying mines in the Strait of Hormuz, a critical chokepoint for global energy shipping.
• The escalation followed the U.S. seizure of another oil tanker linked to Iranian oil smuggling.
• The strait remains “mostly closed off for weeks,” affecting the movement of a fifth of the world’s oil and natural gas.

Notable Quote:

“President Trump says he has ordered the US Military to shoot and kill any Iranian boats that deploy mines to choke traffic through the Strait of Hormuz.” — Libby Casey, [00:00]

2. Senate Blocks War Powers Measure on Iran

• [00:47] The Republican-led Senate blocks a Democratic attempt to limit President Trump’s war powers regarding Iran.
• Democrats vow to persist until Trump administration officials testify publicly.
• Sen. Tammy Baldwin (D-WI) criticizes the ongoing conflict:

  “The president said that the war would be over in a matter of days. We are coming up on the two month mark with no real end in sight.” — Tammy Baldwin, [00:53]

• Some Republicans signal a potential shift if the conflict continues past the 60-day mark at month’s end.

3. CDC Withholds COVID Vaccine Effectiveness Paper

• [01:21] In a rare move, CDC leadership blocks the agency’s traditional, annual report on COVID vaccine effectiveness.
• Despite using longstanding methodology, concerns about the data’s estimation methods trigger a publication halt.
• Report first appeared in The Washington Post, with confirmation from HHS spokesperson Andrew Nixon.

Notable Quote:

“The stoppage was first reported in the Washington Post and confirmed by Andrew Nixon, a spokesman for the Department of Health and Human Services. Nixon cited concerns about how the paper estimates vaccine effectiveness even though the CDC’s methodology has been the same for years.” — Peng Huang, [01:31]

4. U.S. Reclassifies Medical Marijuana

• [02:16] The Trump administration, via Acting Attorney General Todd Blanche, changes federal policy, downgrading state-licensed medical marijuana’s risk category (from Schedule I to Schedule III).
• This shift applies only to FDA-approved or state-licensed medical products and does not impact recreational use.
• Marijuana is now grouped with some prescription painkillers, ending its equivalence in law to heroin and LSD.

Notable Quote:

“This does not immediately change things for recreational marijuana. The new policy applies to two types of products, marijuana that’s FDA approved or marijuana derived products that are FDA approved and ones that are regulated by a state medical marijuana license program.” — Bill Chappell, [02:28]

5. International Criminal Court Confirms Charges Against Duterte

• [03:13] ICC judges confirm charges of crimes against humanity against former Philippines President Rodrigo Duterte, citing deadly anti-drug crackdowns linked to dozens of murders both during his presidency and earlier mayoral tenure.
• Duterte was arrested last year; proceedings have been delayed by health concerns.

6. Gibraltar’s Monkeys Eat Dirt to Stomach Human Junk Food

• [03:44] Barbary macaques on Gibraltar are observed eating soil and clay (a behavior called geophagy) to counteract stomach troubles from consuming human junk food.
• The findings shed light on the monkeys’ adaptation strategies amidst heavy tourism.

Notable Quote:

“A new study in the journal Scientific Reports finds the macaques, which most often interact with humans are more likely to eat dirt like soil and clay, what scientists call geophagy or geophagia, a behavior researchers believe that helps the monkeys buffer their stomachs from the types of yucky guts we all get after too much junk food.” — Nate Rott, [03:44]

7. New Insights on Interstellar Comet

• [04:20] Recent study suggests comet 3i Atlas, which visited Earth last year from another star, comes from a “cold, isolated corner of the galaxy.”
• It may be the oldest and only confirmed interstellar comet to date.

Memorable Moments & Quotes

• “[The Strait of Hormuz] has been mostly closed off for weeks. Normally, a fifth of the world’s oil and natural gas pass through it.” — Libby Casey, [00:15]
• “Democrats say they’ll force the vote again until Trump officials publicly testify on the conflict.” — Claudia Grizzaldes, [00:47]
• “The CDC’s methodology has been the same for years.” — Peng Huang, [01:54]
• “Moving medical marijuana to Schedule 3 puts it in the same category as some common prescription painkillers.” — Libby Casey, [02:43]

Timestamps for Key Segments

• [00:00] U.S.-Iran tensions and Strait of Hormuz update
• [00:47] Senate blocks war powers resolution
• [01:21] CDC COVID vaccine effectiveness publication controversy
• [02:16] Medical marijuana reclassification policy
• [03:13] ICC proceedings against Duterte
• [03:44] Gibraltar’s monkeys and geophagy research
• [04:20] Origins and study of interstellar comet 3i Atlas

This summary covers all essential topics and quotes from today's NPR News Now, providing a clear, concise understanding of the day’s news for those who haven’t listened.