What are the 10 biggest news stories from today?

Based on my research, here are 10 of the biggest news stories making headlines today (September 19, 2026):

1. Ongoing U.S.-Iran War Casualties Underreported
A new Washington Post report reveals that more American service members have died in the Middle East during the ongoing Iran war than the Pentagon has disclosed publicly, according to six U.S. officials, with officials expressing frustration that the additional loss of life in the Middle East is not reflected in the Defense Department's casualty database.

2. Gas and Diesel Prices Soaring Amid Iran War
Energy costs are spiking as the conflict drags on — the national average for gasoline jumped 7 cents overnight to $4.44 a gallon, up nearly 50% since before the Iran war started in February, while diesel hit a record $6.40, up 77 cents since the beginning of September.

3. UN Panel Alleges Possible U.S. War Crimes in Iran
A UN-commissioned investigation found "reasonable grounds" to believe the U.S. committed war crimes with two strikes in Iran that killed at least 178 civilians.

4. New U.S. Sanctions on Iran-Linked Crypto
The Treasury Department escalated economic pressure, announcing new sanctions on cryptocurrency venture Bitbank as part of its ongoing Operation Economic Outcast campaign, allegedly run by financier Babak Zanjani.

5. South Korea's President Rules Out Hormuz Troop Deployment
In a major regional development, South Korean President Lee Jae-myung firmly stated that there will be no troop deployment to war regarding the Strait of Hormuz deployment issue, while South Korea-US foreign ministers held talks in Washington focused on coordination over US investments and the Hormuz deployment issue.

6. Xi Jinping's Planned U.S. Visit and UN Assembly Snub
Ahead of a planned September 24 White House summit, reports confirm Xi Jinping is heading to Washington for a one-on-one with Trump but giving the UN General Assembly a hard pass, signaling where Beijing's diplomatic priorities currently sit.

7. Trump Threatens More Media Bans
Domestically, President Trump chalked a recent media ban up to what he called unfavorable coverage and threatened that bans on other media companies could be coming.

8. AI Risk Concerns Growing in Washington
A significant new narrative is emerging around artificial intelligence, with NPR reporting the nation waking up to the potential danger of runaway tech — AI behaving in ways its creators don't intend and can't control, with estimates suggesting we might be six months to a year away from AI being capable of acting on its own.

9. Houthi Escalation in Red Sea Threatens Shipping
Regional instability continues to grow as Yemeni Houthi militia members seized the Red Sea port of Mokha and several islands inside the Bab el-Mandeb Strait, a key shipping passage.

10. Asian Games Kick Off in Nagoya, Japan
On the sports front, the Asian Games, the top sports festival on the Asian continent, opened this evening in Nagoya, Japan, with national delegations beginning a 16-day competition.

Note: The Iran war and its economic/political fallout continues to dominate headlines across multiple outlets, alongside major diplomatic maneuvering ahead of next week's UN General Assembly and the upcoming Trump-Xi summit.