General news

Slack CEO Stewart Butterfield poses for photos outside the New York Stock Exchange before his company's IPO, Thursday, June 20, 2019. (AP Photo/Richard Drew)

FILE - In this Saturday, June 8, 2019 file photo, Britain's Meghan, the Duchess of Sussex and Prince Harry ride in a carriage to attend the annual Trooping the Colour Ceremony in London. Kensington Palace says on Thursday, June 20 the Duke and Duchess of Sussex will be starting their own foundation to support their charitable endeavors, formally spinning off from the entity Prince Harry and Prince William established together a decade ago. (AP Photo/Frank Augstein, file)

FILE - In this two photo file combo image, Jeremy Hunt, left, and Boris Johnson, right, who are the final two contenders for leadership of the Conservative Party, Thursday June 20, 2019. Following elimination votes Britain's Conservative Party members will vote for the final two contenders with the winner due to replace Prime Minister Theresa May as party leader and prime minister. (AP Photo FILE/Matt Dunham, Frank Augstein)

Ukrainian President Volodymyr Zelenskiy attends a joint news conference with German Chancellor Angela Merkel after a meeting at the chancellery in Berlin, Germany, Tuesday, June 18, 2019. (AP Photo/Markus Schreiber)

French President Emmanuel Macron, right, speaks with German Chancellor Angela Merkel prior to a meeting during an EU summit in Brussels, Thursday, June 20, 2019. European Union leaders meet for a two-day summit to begin the process of finalizing candidates for the bloc's top jobs. (Kenzo Tribouillard, Pool Photo via AP)

AP Photo/Jeff Roberson, File

British Conservative party leadership and prime minister contender Boris Johnson leaves his home in south London, Thursday June 20, 2019. The race to become Britain's next prime minister is down to the final four on Wednesday, as Boris Johnson stretched his lead among Conservative lawmakers and upstart Rory Stewart was eliminated from the contest. (AP Photo/Matt Dunham)

A sperm whale and its baby, tangled in a fishing net, lie dead in the Tyrrhenian sea off Italy, Thursday, June 20, 2019. An Italian environmental group is reporting the sighting of a dead mother sperm whale and its baby that became tangled in a fishing net in the Tyrrhenian sea off Italy. Marevivo said Thursday that the Italian Coast Guard had responded, and surmised that the mother died trying to free its baby, which was trapped in a fishing net. Part of the net was found in the adult's mouth while the baby was completely covered by it. (Italian Coast Guard/Marevivo via AP)

In this Oct. 24, 2018, photo released by the U.S. Air Force, members of the 7th Reconnaissance Squadron prepare to launch an RQ-4 Global Hawk at Naval Air Station Sigonella, Italy. Iran's Revolutionary Guard shot down a U.S. RQ-4 Global Hawk on Thursday, June 20, 2019, amid heightened tensions between Tehran and Washington over its collapsing nuclear deal with world powers, American and Iranian officials said, though they disputed the circumstances of the incident. (Staff Sgt. Ramon A. Adelan/U.S. Air Force via AP)

FILE - This Tuesday, May 8, 2018, file photo shows a Waymo logo displayed on the window of a car at the Google I/O conference in Mountain View, Calif. Self-driving car pioneer Waymo is teaming up with automakers Renault and Nissan to make its first journey outside the U.S. with a ride-hailing service that will dispatch a fleet of robotaxis in France and Japan. (AP Photo/Jeff Chiu, File)