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Elizabeth Holmes once seemed destined to fulfill her dream of becoming Silicon Valley's next superstar.

Jury selection in the fraud trial of Theranos founder Elizabeth Holmes began Tuesday, casting a spotlight on the fallen Silicon Valley star now facing felony charges alleging she duped elite financial backers, customers and patients into believing that her startup was about to revolutionize medicine.

Mexico's richest man has pledged to rebuild and pay for a segment of a Mexico City subway line that collapsed on May, killing 26 people, President Andrés Manuel López Obrador said Wednesday. López Obrador said telecom and construction magnate Carlos Slim has promised to pay for the rebuilding out of his own pocket and have it back in service in a year. One of his companies had originally built much of the section where the collapse occurred.

An overpass collapse killed 26 and has put pressure on leading Mexican politicians and businessmen.

Mexico Metro Collapse FILE - In this May 4, 2021 file photo, subway cars dangle at an angle from a collapsed elevated section of the metro in Mexico City, the day after the collapse. (AP Photo/Fernando Llano, File) (Fernando Llano)MEXICO CITY — (AP) — A preliminary report by experts into the collapse of a Mexico City elevated subway line that killed 26 people placed much of the blame Wednesday on poor welds in studs that joined steel support beams to a concrete layer supporting the track bed. Previous reports by engineering firms revealed Ebrard’s city government had made a series of startlingly wrong choices when the subway line was designed and built. The Gold Line line chattered, bumped and shrieked. Mexico City’s subway, which serves 4.6 million riders every day, has never had the one thing it needs most: money.

A preliminary report by experts into the collapse of a Mexico City elevated subway line that killed 26 people placed much of the blame on poor welds that joined steel support beams to a concrete layer supporting the track bed.

Mexico’s top diplomat says shipments of a long-delayed lot of AstraZeneca vaccines will finally be sent to Argentina.

But in recent days, the creeping sense that the coronavirus is everywhere has been magnified by news that three of the nation’s most powerful men are now sick with COVID-19. AdvertisementThe country has recorded nearly 150,000 official COVID-19 deaths — the fourth-highest death toll in the world. He announced that he had tested positive for COVID-19 late Sunday shortly after returning to Mexico City from a multistate tour, where over three days he held several meetings and attended two events. Local media cite unnamed sources within his administration who say López Obrador fell ill with flu-like symptoms on Saturday and was administered a COVID-19 test that day. Rivera was Mexico’s top Catholic leader before retiring in 2017.

Stars pay tribute at Robert De Niro, Friars event The stars flocked to New York's Waldorf Astoria for a Friars Club event honoring Robert De Niro and Mexican telecommunications magnate Carlos Slim. De Niro received the club's Entertainment Icon Award while Slim was honored for his charitable efforts with the Friars Foundation Icon Award for Philanthropy. Sting, Larry King, Frankie Valli, Penny Marshall, Tony Bennett and Joe Jackson spoke to CBS News' Ken Lombardi about the prestigious honors given to De Niro and Slim.