AI without limits threatens public trust — here are some guidelines for preserving communications integrityCincinnati Financial Corp. stock underperforms Tuesday when compared to competitorsIndia stresses climate equity, warns against overburdening citizens

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Luigi Mangione, a person of interest being questioned in connection with the shooting death of UnitedHealthcare CEO Brian Thompson , had a ghost gun, a type of firearm that can be made at home, police said Monday. Mangione was detained on Monday at a McDonald's in Altoona, Pennsylvania, early a week after Thompson was killed in New York City. Thompson was shot in the back and in the calf. "As of right now the information we're getting from Altoona is that the gun appears to be a ghost gun, may have been made on a 3D printer, with the capability of firing a 9mm round," NYPD Chief of Detectives Joseph Kenny said Monday. "Obviously, that will come out during our ballistics testing." During the investigation, a law enforcement official with knowledge of the investigation had told CBS News that police believed the suspect used a B&T Station SIX gun to carry out the shooting. Investigators visited gun dealers in Connecticut during their search. The gun used in the shooting had a long barrel and a distinctive look , CBS News' Anna Schechter reported. In addition to the unusual gun, the words "delay," "deny" and possibly "depose" appeared on shell casings and bullets recovered from the shooting scene, police said. What is a ghost gun? A privately made firearm , more commonly known as a ghost gun, is a firearm that has been assembled or completed by people other than licensed manufacturers, according to the Bureau of Alcohol, Tobacco, Firearms and Explosives. They're made without a serial number, which can make them difficult to track. Not all ghost guns are illegal and not all firearms are required to have a serial number. Ghost guns can be pistols, revolvers, rifles, shotguns, machineguns and more. From 2016 through 2021, there were more than 45,000 suspected ghost guns reported to the ATF as having been recovered by police from potential crime scenes. How do people usually make ghost guns? Ghost guns can be made using a 3D printer or assembled from a kit. The weapons can be produced for less than $200, though officials have put the average price at around $500, CBS News previously reported . In 2018, CBS News correspondent Carter Evans was able to purchase a kit for a gun similar to a Glock 9mm with no background check or waiting period. Kits online are available for everything from handguns to AR-15s and AK-47s. "You can buy a box of firearms parts, and you can assemble those firearms together. And I've seen videos on YouTube, where you can see people doing it in record time — 20, 30 minutes," Marvin Richardson, ATF acting director in 2022, has previously said . Are ghost guns illegal? Not all ghost guns are illegal. According to the ATF, individuals can make their own firearms using a 3D printing or other process if the gun is "detectable," as defined in the Gun Control Act. It's generally legal to make a firearm for personal use without a license, according to the ATF . Some states, including New York — where Thompson's shooting happened — have additional laws related to ghost guns. What does a ghost gun look like? There are many types of ghost guns with a range of appearances. The ATF lists 10 categories of privately made firearms: pistol, revolver, rifle, shotgun, frame or receiver, machinegun conversion device, destructive device, machinegun, firearm silencer and any other weapon. Ghost Guns Aliza Chasan is a Digital Content Producer for "60 Minutes" and CBSNews.com. She has previously written for outlets including PIX11 News, The New York Daily News, Inside Edition and DNAinfo. Aliza covers trending news, often focusing on crime and politics.

NEW YORK (AP) — U.S. stock indexes drifted lower Tuesday in the runup to the highlight of the week for the market, the latest update on inflation that’s coming on Wednesday. The S&P 500 dipped 0.3%, a day after pulling back from its latest all-time high . They’re the first back-to-back losses for the index in nearly a month, as momentum slows following a big rally that has it on track for one of its best years of the millennium . The Dow Jones Industrial Average fell 154 points, or 0.3%, and the Nasdaq composite slipped 0.3%. Tech titan Oracle dragged on the market and sank 6.7% after reporting growth for the latest quarter that fell just short of analysts’ expectations. It was one of the heaviest weights on the S&P 500, even though CEO Safra Catz said the company saw record demand related to artificial-intelligence technology for its cloud infrastructure business, which trains generative AI models. AI has been a big source of growth that’s helped many companies’ stock prices skyrocket. Oracle’s stock had already leaped more than 80% for the year coming into Tuesday, which raised the bar of expectations for its profit report. In the bond market, Treasury yields ticked higher ahead of Wednesday’s report on the inflation that U.S. consumers are feeling. Economists expect it to show similar increases as the month before. Wednesday’s update and a report on Thursday about inflation at the wholesale level will be the final big pieces of data the Federal Reserve will get before its meeting next week, where many investors expect the year’s third cut to interest rates . The Fed has been easing its main interest rate from a two-decade high since September to take pressure off the slowing jobs market, after bringing inflation nearly down to its 2% target. Lower rates would help give support to the economy, but they could also provide more fuel for inflation. Expectations for a series of cuts through next year have been a big reason the S&P 500 has set so many records this year. Trading in the options market suggests traders aren’t expecting a very big move for U.S. stocks following Wednesday’s report, according to strategists at Barclays. But a reading far off expectations in either direction could quickly change that. The yield on the 10-year Treasury rose to 4.22% from 4.20% late Monday. Even though the Fed has been cutting its main interest rate, mortgage rates have been more stubborn to stay high and have been volatile since the autumn. That has hampered the housing industry, and homebuilder Toll Brothers’ stock fell 6.9% even though it delivered profit and revenue for the latest quarter that topped analysts’ expectations. CEO Douglas Yearley Jr. said the luxury builder has been seeing strong demand since the start of its fiscal year six weeks ago, an encouraging signal as it approaches the beginning of the spring selling season in mid-January. Elsewhere on Wall Street, Alaska Air Group soared 13.2% after raising its forecast for profit in the current quarter. The airline said demand for flying around the holidays has been stronger than expected. It also approved a plan to buy back up to $1 billion of its stock, along with new service from Seattle to Tokyo and Seoul . Boeing climbed 4.5% after saying it’s resuming production of its bestselling plane , the 737 Max, for the first time since 33,000 workers began a seven-week strike that ended in early November. Vail Resorts rose 2.5% after the ski resort operator reported a smaller first-quarter loss than analysts expected in what is traditionally its worst quarter. All told, the S&P 500 fell 17.94 points to 6,034.91. The Dow dipped 154.10 to 44,247.83, and the Nasdaq composite slipped 49.45 to 19,687.24. In stock markets abroad, indexes were mixed in China after the world’s second-largest economy said its exports rose by less than expected in November. Stocks rose 0.6% in Shanghai but fell 0.5% in Hong Kong. Indexes fell across much of Europe ahead of a meeting this week by the European Central Bank, where the widespread expectation is for another cut in interest rates. AP Business Writers Matt Ott and Elaine Kurtenbach contributed.NoneSaints say Taysom Hill 'likely' has a season-ending knee injury

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Ross Barkley’s 85th-minute goal gave them victory in Germany after goals from John McGinn and Jhon Duran early in each half were cancelled out by Lois Openda and Christoph Baumgartner. That sent them up to third in the new league phase of the competition ahead of Wednesday’s games and with matches against Monaco and Celtic to come, Villa have an excellent chance of finishing in the top eight. That would mean they would avoid a play-off round to make it through to the last 16 and Emery says that is the target. “Today was key. Juventus at home, we were thinking more to win but in the end we accepted the draw because it was important for a point to be more or less in the top 24,” he told Amazon Prime. “Today was a match we were thinking at the beginning was key to be a contender to be in the top eight with the last two matches to be played. “It is going to be difficult and we have to get some more points but we now have the possibility to achieve this option. “We are going to enjoy and try to get top eight but we have to be happy because we are in the top 24 and maybe even the top 16. “We weren’t contenders in the beginning to get there but now we have to accept it.” Leipzig, who are flying high near the top of the Bundesliga, are out after losing all six matches. They did pose a threat to Villa, who inflicted some of their own problems on themselves, notably a rare gaffe from goalkeeper Emiliano Martinez for Openda’s equaliser. But Emery was happy with his side’s performance. “I try to enjoy and always we want to improve and sometimes it is hard but today the team were performing well, playing seriously and I was enjoying it,” he added. “We tried to overcome the mistakes we made and we did. More or less we were playing consistently. One mistake and they score but then we played very well. “Champions League is very difficult and we have to expect that every team playing at home are feeling strong. We played with consistency and domination.”