'A.I. Doomsday' Concerns As New Model Is Released - What You Need To Know - April 9, 2026

[0:04] This is what you need to know now. [0:07] The fragile U.S. ceasefire with Iran, the confusion about the terms, and when gas prices could start coming down. [0:13] Concerns about artificial intelligence doomsday, the disturbing claims being made about a new AI model, and what it could mean for global security. [0:22] The construction site tragedy, a parking garage partially collapsing with people missing in the rubble. [0:28] Plus, heading home, the Artemis II crew talks about the dangerous journey home hours before splashdown off the San Diego coast. [0:36] And the family fun. [0:38] Oh, heck yeah. [0:40] Ahead of the masters. [0:41] We have much more What You Need to Know now. [0:44] I'm Elizabeth Schulze from ABC News. [0:46] It's Thursday, April 9th. [0:47] This is What You Need to Know. [0:49] We'll show you the explosion rocking a Rhode Island factory and suspensions handed down after a Major League Baseball fight. [0:55] But first, the big story. [0:56] A tentative ceasefire in the Iran war appears to be struggling under the pressure of Israel's attacks in Beirut and Tehran's control of the Strait of Hormuz. [1:05] There are key questions remaining, including what will happen to Iran's uranium stockpile and when shipping through the strait will return to normal. [1:14] Mary Bruce is at the White House. [1:16] Elizabeth, the ceasefire between the U.S. and Iran remains fragile after refusing to reopen the Strait of Hormuz. [1:22] Iran now says that the critical waterway is open. [1:25] This, of course, had been President Trump's top demand for this ceasefire, but Iran is still accusing the U.S. of not holding up its end of the deal. [1:32] The point of contention here is Israel's ongoing strikes against Hezbollah targets in Lebanon. [1:38] Iran says Lebanon was included in this truce, but the U.S. and Israel say that was never the deal, that Lebanon was never part of the ceasefire. [1:45] Vice President J.D. Vance, who's now supposed to be leading negotiations and who's eager to tout this truce as a win, is chalking it up to a misunderstanding, saying, quote, [1:53] no ceasefire ever goes without a little bit of choppiness. [1:56] Negotiations on a lasting agreement to end the war are set to begin this weekend in Pakistan, but now the Iranian president says unless Israel stops strikes, those strikes in Lebanon, [2:06] negotiations to end this war would be, quote, meaningless, adding, quote, our hands will remain on the trigger. [2:12] Overnight, President Trump also increasing the pressure, posting that all U.S. forces, quote, [2:17] will remain in place in and around Iran until a final deal is reached, and saying if it's not, Trump warning, quote, [2:24] the shooting starts bigger and better and stronger than anyone has ever seen before. [2:29] Even if the strait does reopen, analysts warn it could take months for global shipping to recover. [2:34] Still, experts say drivers in the U.S. could see gas prices come down slightly in the coming days, [2:39] falling from the current average of $4.16 per gallon to as low as $3.70 by the end of the month if the ceasefire holds. [2:47] Now to experts raising new concerns about the power of artificial intelligence and global security. [2:52] It comes after the A.I. company Anthropic held off releasing its new model to the public [2:58] out of concern over what it could potentially do crippling computer networks. [3:03] Here's ABC's Olivia Rubin. [3:05] Elizabeth, Anthropic says its new model, called Claude Mythos, can identify software vulnerabilities with ease, [3:12] finding thousands of security issues across nearly every major operating system and web browser. [3:18] Experts say in the wrong hands, this technology could be used to exploit electric grids, hospitals, even military systems. [3:26] Now, instead of releasing Claude Mythos to the public, Anthropic releasing it just to a small number of companies, [3:32] including Amazon, Google, and Apple. [3:35] The goal? To allow tech companies to patch holes in their cybersecurity before they're exploited. [3:41] Anthropic saying this will eventually help the U.S. defend against foreign cyber attacks. [3:46] Now, some critics question if Anthropic might be playing up its capabilities as a marketing tactic. [3:52] But either way, experts saying lawmakers need to pay attention here. [3:57] The Michigan man who said his wife vanished after going overboard in the Bahamas says he is innocent. [4:03] Police are questioning 59-year-old Brian Hooker after announcing a criminal investigation. [4:08] He told authorities his wife, Lynette, fell off a dinghy Saturday night and was swept away, [4:14] saying that high winds and currents drove them apart despite his attempts to reach her. [4:18] Lynette Hooker's daughter told ABC affiliate WZZM that her mom and stepfather had a history of drinking and argued when they drank. [4:26] Now, an attorney for Hooker says his client categorically and unequivocally denies any wrongdoing, [4:31] and in particular, the allegations recently made by Lynette's daughter. [4:36] In Philadelphia, crews are working to stabilize a partially collapsed parking garage. [4:40] Authorities say one person was killed and two others were missing this morning [4:44] after multiple concrete floor and roof segments came crashing down. [4:48] The garage was under construction. [4:50] A nearby home security camera captured the moment of the partial collapse. [4:55] One neighbor said he thought that there was an earthquake. [4:57] And 13 workers suffered minor injuries at this industrial plant in Rhode Island after an explosion. [5:04] Officials say the blast happened in equipment used to dry insulation material. [5:08] There was another fire at the same facility back in January. [5:11] And here's what to watch. [5:12] Impact by Nightline investigates the infamous trailside killer in Northern California. [5:18] The episode explores how the attacks unfolded and whether there could be more victims. [5:22] Terror on the Trails is streaming now on Disney+. [5:25] Nearly 20 years after its final episode, Malcolm in the Middle is making a long-awaited comeback. [5:32] The four-part revival will drop all at once for binge-watching. [5:35] Frankie Muniz returns as Malcolm alongside Bryan Cranston as Hal. [5:39] All episodes hit Disney Plus tomorrow. [5:42] We have much more What You Need to Know. [5:44] Here's your daily briefing. [5:55] Other big stories we're following on ABC News. [5:58] The Justice Department says Pam Bondi is no longer obligated to sit down for a deposition [6:02] in the Jeffrey Epstein case because she's no longer attorney general. [6:06] House lawmakers are still demanding her testimony, arguing she remains obligated to testify. [6:12] Major League Baseball handed out suspensions after that Braves-Angels brawl that we showed you yesterday. [6:17] Jorge Soler of the Angels and Braves pitcher Ronaldo Lopez each received seven games. [6:23] But Lopez's suspension was reduced to five games after an appeal. [6:27] Soler is also appealing. [6:29] And the Artemis 2 crew is preparing for one of the most dangerous parts of the mission, [6:33] re-entry into Earth's atmosphere. [6:35] They're expected to reach a speed of nearly 35,000 feet per second. [6:39] We were asked, what are we looking forward to? [6:41] And I said splashdown. [6:42] And there's so much data that you've seen already, but all the good stuff is coming back with us. [6:46] There's so many more pictures, so many more stories. [6:48] As of now, the weather looks great for the expected splashdown off the San Diego coast tomorrow. [6:54] And new today, the CDC says that U.S. fertility rates hit another record low in 2025, [7:00] falling to 53.1 births per 1,000 women. [7:04] Overall births also fell by 1%. [7:07] Experts say that this trend began during the Great Recession in 2007, but has continued ever since. [7:13] Finally, before you go, a tradition unlike any other. [7:16] The Masters Tournament kicks off today in Augusta, Georgia. [7:19] The pros had some help on the course yesterday as their kids, dressed as caddies, [7:23] joined them for the Par 3 contest. [7:25] There were four holes in one. [7:27] But a child had one of the best putts of the day. [7:29] Check out nine-year-old Cooper Harmon giving that putt a good old whack [7:33] and dropping it right into the hole. [7:36] That is what you need to know for breaking news and live updates throughout the day. [7:39] Check out ABC News streaming on Disney+. [7:42] New episodes streaming every day on Disney+. [7:47] kind of stuff. 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