Boys pan for gold on a riverside at Iga Barriere, 25 km (15 miles) from Bunia, in the resource-rich Ituri region of eastern Congo February 16, 2009. Ituri is one of many areas of the country to have experienced bitter ethnic conflict between rival tribes in recent years. Massacres have left tens of thousands dead. It is this fighting that led U.S. authorities to take the unprecedented step of naming Congo in section 1502 of the Dodd-Frank financial regulation act, which says U.S.-listed companies that source gold, tungsten, tantalum and tin from Congo or its neighbours must assure the U.S. stock exchange regulator that their business is not helping fund conflict. (Photo by Finbarr O'Reilly/Reuters)

Germany's Nikias Arndt, left, receives encouragement from a spectator during the men's elite road race at the world road cycling championships in Wollongong, Australia, Sunday, September 25, 2022. (Photo by Rick Rycroft/AP Photo)

A new monorail service in Houston, Texas, ready for its inaugural service. (Photo by Evans/Three Lions/Getty Images). Circa 1950

A member of team Japan performs during the women's team free final at the FINA World Championships in Budapest, Hungary on June 24, 2022. (Photo by Marton Monus/Reuters)

In this image made from video, woman protesters march with a sign outside the building housing the Saudi consulate in Sydney, Thursday, January 10, 2019. Four women held a topless protest in Sydney on Thursday to support runaway Saudi woman Rahaf Mohammed Alqunun, as Australia began considering her bid to settle in the country as a refugee. (Photo by Australia Broadcast Corporation via AP Photo)

Two Herens cows lock horns during the qualification round of the annual “Battle of the Queens” cow fight finals in Aproz, in the western Alpine canton of Valais May 5, 2013. Each year when taken to the alpine pastures, the cows test their strength and fight for the herd's leadership. The competition continues until a new queen has forced all the other cows to retreat. (Photo by Valentin Flauraud/Reuters)

Children in Hiroshima, Japan, wearing masks to combat the odour of death after the city was destroyed by the first atom bomb. (Photo by Keystone/Getty Images). 1945