Police officers detain a Femen activist during a demonstration of supporters of former Spanish dictator Francisco Franco, during annual gathering held on the week of the 45th anniversary of the dictator's death, in Madrid, Spain, November 22, 2020. (Photo by Javier Barbancho/Reuters)

A cemetery worker dig new graves at the Xico cemetery on the outskirts of Mexico City, as the coronavirus disease (COVID-19) outbreak continues in Mexico, June 10, 2020. (Photo by Edgard Garrido/Reuters)

A pistol is lies near the body of a drug suspect who was killed with two others in an alleged “buy-bust” operation before dawn on Friday, September 30, 2016, in Caloocan city, north of Manila, Philippines, in the continuing “War on Drugs” campaign of President Rodrigo Duterte. Duterte said he would be “happy to slaughter” 3 million addicts. (Photo by Bullit Marquez/AP Photo)

Fans of US singer Taylor Swift, also known as a Swifties, queue to enter at the Melbourne Cricket Ground (MCG) for the first of Swift's three shows in Melbourne on February 16, 2024. Swift is playing to 260,000 fans over three concerts in Melbourne starting February 16 as part of her Eras World Tour. (Photo by William West/AFP Photo)

A German special anti-tank gun is ready to fire during the army maneuvers in Silesia, Poland, on September 22, 1928. (Photo by AP Photo)

A youth rides his bicycle at Times Square, in New York City, U.S., August 14, 2019. (Photo by Lucas Landau/Reuters)

A technician disinfects official balls before the Group F Africa Cup of Nations (CAN) 2021 football match between Mauritania and Gambia at Limbe Omnisport Stadium in Limbe on January 12, 2022. (Photo by Issouf Sanogo/AFP Photo)

Google has built its first self-driving car prototypes and hopes to test hundreds more models this summer. If all goes well, the company is planning a pilot program in California over the next few years.