School teachers and staff members take part during an active shooter training at James I. O'Neill High School in Highland Falls, New York, U.S., December 12, 2017. (Photo by Eduardo Munoz/Reuters)

A boy walks by a model of a dinosaur wearing a face mask, during a partial lockdown to prevent the spread of the coronavirus, at the Museum of Natural History in Brussels, Tuesday, May 19, 2020. Museums are hesitantly starting to reopen as the coronavirus lockdown measures are relaxed, yet experts say that one in eight in the world could potentially face permanent closure because of the pandemic. (Photo by Virginia Mayo/AP Photo)

Grave diggers wearing personal protective equipment (PPE) walk away after burying a person, who presumably died of the coronavirus disease (COVID-19), in the special purpose section of a graveyard on the outskirts of Saint Petersburg, Russia on May 13, 2020. (Photo by Anton Vaganov/Reuters)

A protester wears a face shield made of recycled plastic bottles by artist Leeroy New during a anti-terror bill rally at the University of the Philippines as they observe Independence Day on Friday, June 12, 2020, in Metro Manila, Philippines. Hundreds of activists in the Philippine capital staged protests Friday against a proposed anti-terror law they say could be used to quash dissent, ignoring police threats that they could be arrested for violating coronavirus restrictions against large public gatherings. (Photo by Aaron Favila/AP Photo)

In this picture taken on September 24, 2016, relatives grieve their lost one, an alleged drug user/dealer gunned down by unidentified gunmen in Manila. Philippine President Rodrigo Duterte defended his threat to kill criminals as “perfect” and vowed no let-up in his war on crime, as the death toll surged past 3,700. (Photo by Noel Celis/AFP Photo)

A girl sits on her boat at a Bak Angrout dried up pond at the drought-hit Kandal province in Cambodia May 13, 2016. (Photo by Samrang Pring/Reuters)

A demonstrator holds a rose and shouts slogans in front of a riot policeman during an unauthorized march called by secondary students to protest against government education reforms in Valparaiso, Chile, May 26, 2016. (Photo by Rodrigo Garrido/Reuters)

Tlingit Tribal members from Klawock, Alaska Eva Rowan, center, and Jonathan Rowan, right, watch Okolani Tallett perform a hula dance at the Honolulu Museum of Arts, Thursday, October 22, 2015, in Honolulu. A totem pole, stolen by actor John Barrymore during a sailing trip to Alaska in 1931, was returned to the Tribe today by the Honolulu Museum of Arts where it was on display since the early 1980s. The totem pole was carved by the ancestors of the Tlingit Tribe. (Photo by Marco Garcia/AP Photo)