UPDATE 4-State attorney general group probing Facebook could expand to 40 -source . An estimated 40 U.S. state attorneys general will participate in a probe of Facebook Inc , a source said on Monday, suggesting many more states want allegations of anticompetitive practices at the social media company investigated.

WeWork's financing lifeline hinges on SoftBank talks . WeWork is locked in negotiations this week with its largest shareholder, Softbank Group Corp, over a new $1 billion investment to enable the shared office space company to go through a major restructuring, according to sources familiar with discussions.

Estimated 40 U.S. state attorneys general will join Facebook probe -source . An estimated 40 U.S. state attorneys general will participate in a probe of Facebook Inc , a source said on Monday, which would be a big increase in the number of states joining the investigation.

UPDATE 1-Samsung Elec says Q3 profit seen down 56%, beats expectations . South Korean tech giant Samsung Electronics on Tuesday reported its third-quarter operating profit likely tumbled 56%, hurt by a downturn in global memory chip prices but slightly better than analysts had anticipated.

FEATURE-New on the menu: Could 'dark kitchens' gobble up Britain's high street restaurants? . LONDON, Oct 8 (Thomson Reuters Foundation) - When Eccie Newton and her sister began making fresh salads and sandwiches to deliver to London office workers, their start-up company Karma Cans became so popular they soon had to expand - and hit a common roadblock: space.

UPDATE 3-Hopes for a deal dim as U.S.-China trade talks get underway in tense atmosphere . Prospects for progress in U.S.-China trade talks dimmed on Monday after Washington blacklisted Chinese companies over Beijing's treatment of predominantly Muslim ethnic minorities, and President Donald Trump said a quick trade deal was unlikely.

Samsung Elec says Q3 profit likely fall 56% on memory chip slump . South Korea's Samsung Electronics Co Ltd said on Tuesday its third-quarter operating profit likely fell 56% from a year earlier, slightly better than analysts had expected.

UPDATE 2-Facebook the focus of U.S. Justice Dept and state AGs meeting . U.S. state attorneys general investigating Facebook Inc for alleged anti-competitive practices met on Monday with officials of the Justice Department and the Federal Trade Commission, New York Attorney General Letitia James said in a statement.

'Two Popes' filmmakers hope Pope Francis is amused . Director Fernando Meirelles is a fan of Pope Francis but says his new film, which tries to get into the head of the Argentine pontiff, also shows some of his weaknesses.

CORRECTED-Paralysed man hails "feat" of walking again with robot exoskeleton . The French tetraplegic man who has been able to walk again using a pioneering four-limb robotic system, or exoskeleton, said walking was a major feat for him after being immobile for years.