Supporters watch as former U.S. President Donald Trump speaks at the Conservative Political Action Conference in Orlando, Florida, U.S. February 28, 2021. REUTERS/Octavio Jones

Supporters watch as former U.S. President Donald Trump speaks at the Conservative Political Action Conference (CPAC) in Orlando, Florida, U.S. February 28, 2021. REUTERS/Octavio Jones

Tom Fitton, president of Judicial Watch, speaks at the Conservative Political Action Conference (CPAC) in Orlando, Florida, U.S. February 28, 2021. REUTERS/Joe Skipper

Spectators, some wearing protective face masks, watch a skateboarder competing at the Red Bull Mind the Gap first skateboarding event in Egypt, inside Townhouse Gallery near Tahrir Square, amid the coronavirus disease (COVID-19) pandemic in Cairo, Egypt February 27, 2021. Picture taken February 27, 2021. REUTERS/Amr Abdallah Dalsh

Spectators, some wearing protective face masks, watch a skateboarder as he competes at the Red Bull Mind the Gap first skateboarding event in Egypt, inside Townhouse Gallery near Tahrir Square, amid the coronavirus disease (COVID-19) pandemic in Cairo, Egypt February 27, 2021. Picture taken February 27, 2021. REUTERS/Amr Abdallah Dalsh

People watch the sunrise in front of Roker Pier Lighthouse, at Roker Beach, in Sunderland, Britain, February 28, 2021. REUTERS/Lee Smith

People watch the sunrise in front of Roker Pier Lighthouse, at Roker Beach, Sunderland, Britain, February 28, 2021. REUTERS/Lee Smith

People observe social distancing as they watch U.S. President Joe Biden speak after touring a Federal Emergency Management Agency (FEMA) vaccination facility for the coronavirus disease (COVID-19) at NRG Stadium in Houston, Texas, U.S., February 26, 2021. REUTERS/Jonathan Ernst

Participants wearing motorcycle helmets watch a fire during the 'Beehive Firecrackers' festival at the Yanshui district in Tainan, Taiwan February 26, 2021. Picture taken on February 26, 2021. REUTERS/Ann Wang

White House staff members watch Marine One ascend from the South Lawn of the White House in Washington, U.S., February 26, 2021. REUTERS/Tom Brenner

Hotel guests during a daily exercise watch guests leaving the Radisson Blu Hotel at Heathrow Airport after finishing quarantine, as Britain introduces a hotel quarantine programme for arrivals from a "red list" of 30 countries due to the coronavirus disease (COVID-19) pandemic, in London, Britain, February 26, 2021. REUTERS/Peter Cziborra

Audience members with a "Green Pass", a pass for those vaccinated against the coronavirus disease (COVID-19) or those with presumed immunity, wear face masks as they watch a show at the Khan Theatre in Jerusalem February 25, 2021. Picture taken February 25, 2021. REUTERS/Ronen Zvulun

Argentina's Health Minister Carla Vizzotti watches as a shipment of 900,000 doses of Sinovac coronavirus disease (COVID-19) vaccine arrives from China at Ezeiza International Airport, in Buenos Aires, Argentina, February 25, 2021. REUTERS/Agustin Marcarian

Argentina's Health Minister Carla Vizzotti (C), Chief of cabinet Santiago Cafiero (R), and China's Ambassador to Argentina Zou Xiaoli (L) watch as a shipment of 900,000 doses of Sinovac coronavirus disease (COVID-19) vaccine arrives from China at Ezeiza International Airport, in Buenos Aires, Argentina, February 25, 2021. REUTERS/Agustin Marcarian

Argentina's Health Minister Carla Vizzotti (C), Chief of cabinet Santiago Cafiero (R), and China's Ambassador to Argentina Zou Xiaoli (L) watch as a shipment of 900,000 doses of Sinovac coronavirus disease (COVID-19) vaccine arrives from China at Ezeiza International Airport, in Buenos Aires, Argentina, February 25, 2021. REUTERS/Agustin Marcarian

A family of Polish tourists watches as a waiter prepares to close a coffee shop due to the closing restrictions in an effort to control the spread of the coronavirus disease (COVID-19) as they tour the city of Ronda, southern Spain February 25, 2021. REUTERS/Jon Nazca

U.S. President Joe Biden watches as Linda Bussey, from Washington, DC, receives the first round of the Pfizer coronavirus disease (COVID-19) vaccine during an event to commemorate the 50 millionth coronavirus disease (COVID-19) vaccination, in the South Court Auditorium at the White House in Washington, U.S., February 25, 2021. REUTERS/Jonathan Ernst

U.S. President Joe Biden and Vice President Kamala Harris watch as Stoddert Elementary School counselor Victoria Legerwood Rivera receives the first round of the Pfizer coronavirus disease (COVID-19) vaccine during an event to commemorate the 50 millionth coronavirus disease (COVID-19) vaccination, in the South Court Auditorium at the White House in Washington, U.S., February 25, 2021. REUTERS/Jonathan Ernst

Helene Jolicoeur watches as her 88 year old husband Robert Proteau gets vaccinated against the coronavirus disease (COVID-19) in a clinic in Laval, Quebec, Canada February 25, 2021. REUTERS/Christinne Muschi

U.S. President Joe Biden receives a thumbs up from White House COVID-19 czar Jeff Zients as Vice Presidetnt Kamala Harris and National Institute of Allergy and Infectious Diseases Director Dr. Anthony Fauci watch during an event to commemorate the 50 millionth coronavirus disease (COVID-19) vaccination in the South Court Auditorium at the White House in Washington, U.S., February 25, 2021. REUTERS/Jonathan Ernst

U.S. Vice President Kamala Harris and White House COVID-19 czar Jeff Zients watch as Washington, DC firefighter EMT Corey Hamilton receives the first round of the Pfizer coronavirus disease (COVID-19) vaccine during an event to commemorate the 50 millionth coronavirus disease (COVID-19) vaccination, in the South Court Auditorium at the White House in Washington, U.S., February 25, 2021. REUTERS/Jonathan Ernst

U.S. President Joe Biden and Vice President Kamala Harris watch as Washington, DC firefighter EMT Corey Hamilton receives the first round of the Pfizer coronavirus disease (COVID-19) vaccine during an event to commemorate the 50 millionth coronavirus disease (COVID-19) vaccination, in the South Court Auditorium at the White House in Washington, U.S., February 25, 2021. REUTERS/Jonathan Ernst

National Institute of Allergy and Infectious Diseases Director Dr. Anthony Fauci watches as Washington, DC firefighter EMT Gerald Bunn receives the first round of the Pfizer coronavirus disease (COVID-19) vaccine during an event to commemorate the 50 millionth coronavirus disease (COVID-19) vaccination, in the South Court Auditorium at the White House in Washington, U.S., February 25, 2021. REUTERS/Jonathan Ernst

National Institute of Allergy and Infectious Diseases Director Dr. Anthony Fauci watches as Washington, DC firefighter EMT Gerald Bunn receives the first round of the Pfizer coronavirus disease (COVID-19) vaccine during an event to commemorate the 50 millionth coronavirus disease (COVID-19) vaccination, in the South Court Auditorium at the White House in Washington, U.S., February 25, 2021. REUTERS/Jonathan Ernst

U.S. President Joe Biden and Vice President Kamala Harris watch as Washington, DC firefighter EMT Corey Hamilton receives the first round of the Pfizer coronavirus disease (COVID-19) vaccine during an event to commemorate the 50 millionth coronavirus disease (COVID-19) vaccination, in the South Court Auditorium at the White House in Washington, U.S., February 25, 2021. REUTERS/Jonathan Ernst

U.S. President Joe Biden and Vice President Kamala Harris watch as Linda Bussey, from Washington, DC, receives the first round of the Pfizer coronavirus disease (COVID-19) vaccine during an event to commemorate the 50 millionth coronavirus disease (COVID-19) vaccination, in the South Court Auditorium at the White House in Washington, U.S., February 25, 2021. REUTERS/Jonathan Ernst

Members of Palestinian security forces keep watch as a taxi carrying passengers arrives at the gate of Rafah border crossing with Egypt, in the southern Gaza Strip February 23, 2021. Picture taken February 23, 2021. REUTERS/Ibraheem Abu Mustafa

Felicisima de la Fuente, a 106-year-old resident, watches a special theatre show for residents and nursing homes workers who have achieved immunity against the coronavirus disease (COVID-19) after receiving the second dose of Pfizer-BioNTech vaccine in Madrid, Spain, February 24, 2021. REUTERS/Sergio Perez

A soldier keeps watch at an area where military authorities eradicated a coca leaf plantation and dismantled a lab to process the drug, in El Porvenir, in Guerrero state, Mexico February 22, 2021. Picture taken February 22, 2021. REUTERS/Javier Verdin

Soldiers keep watch at an area where military authorities eradicated a coca leaf plantation and dismantled a lab to process the drug, in El Porvenir, in Guerrero state, Mexico February 22, 2021. Picture taken February 22, 2021. REUTERS/Javier Verdin

Italian Catholic priest Franco Bordignon watches as a military plane carrying the bodies of Italian ambassador to Democratic Republic of Congo Luca Attanasio and his Italian security Vittorio Iacovacci, who were both killed in an attempted kidnapping when their convoy was attacked in Ruhimba village, takes off from the Goma International Airport, in Goma, Democratic Republic of the Congo February 23, 2021. REUTERS/Hereward Holland

Prime Minister Boris Johnson watches a video address by Sir David Attenborough at a session of the UN Security Council on climate and security at the Foreign, Commonwealth and Development Office in London, Britain February 23, 2021. Stefan Rousseau/Pool via REUTERS

Prime Minister Boris Johnson watches a video address by Sir David Attenborough at a session of the UN Security Council on climate and security at the Foreign, Commonwealth and Development Office in London, Britain February 23, 2021. Stefan Rousseau/Pool via REUTERS

U.S. President Joe Biden checks his watch as he arrives to announce changes to the main U.S. coronavirus disease (COVID-19) aid program for small businesses during brief remarks in the South Court Auditorium at the White House in Washington, U.S., February 22, 2021. REUTERS/Jonathan Ernst

U.S. President Joe Biden checks his watch as he arrives to announce changes to the main U.S. coronavirus disease (COVID-19) aid program for small businesses during brief remarks in the South Court Auditorium at the White House in Washington, U.S., February 22, 2021. REUTERS/Jonathan Ernst

People watch as members of indigenous communities and supporters of Ecuador's presidential candidate Yaku Perez march to the capital Quito, in Salcedo, Ecuador February 22, 2021. REUTERS/Santiago Arcos

A police officer keeps watch as a COVID-19 vaccination super station sits idle and empty due to the lack of vaccine during the outbreak of the coronavirus disease (COVID-19) in San Diego, California, U.S., February 22, 2021. REUTERS/Mike Blake

A police officer keeps watch as a COVID-19 vaccination super station sits idle and empty due to the lack of vaccine during the outbreak of the coronavirus disease (COVID-19) in San Diego, California, U.S., February 22, 2021. REUTERS/Mike Blake

Nominee for U.S. Attorney General, Judge Merrick Garland's family watch as he speaks during his swearing in confirmation hearing before the Senate Judiciary Committee, Washington, DC U.S., February 22, 2021. Demetrius Freeman/Pool via REUTERS

A dancer wearing a protective mask to curb the spread of the coronavirus disease (COVID-19), sits among the empty seats as she watches her colleagues during a virtual dance performance titled 'The Story of Man: In Search of A New Ideal' by Namarina Youth Dance, at the Jakarta Art Building, Indonesia, February 21, 2021. Picture taken February 21, 2021. REUTERS/Willy Kurniawan

Albert Lemasulani, a field coordinator who works for the start-up The Bug Picture, watches workers be paid, after they harvested desert locusts, near Rumuruti, Kenya, February 1, 2021. "The biggest part of the animal feed is the protein," Lemasulani said. "The community ... are collecting locusts, once they (are collected) they are weighed and paid." REUTERS/Baz Ratner SEARCH "RATNER LOCUSTS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

A woman watches from her window as workers prepare to move a 139-yea- old Victorian house, known as the Englander House, to a new location six blocks away, as the original site is to be used to build a 48-unit, eight-story apartment building, in San Francisco, California, U.S. February 21, 2021. REUTERS/Brittany Hosea-Small

People watch as rescuers inspect the debris from a Nigerian air force plane, which crashed while approaching the Abuja airport runway according to aviation minister, in Abuja, Nigeria February 21, 2021. REUTERS/Abraham Achirga

Egyptian spectators wearing protective face masks watch racing teams drive on compete in the O West Rally 2021 organized by Bosla, amid the coronavirus disease (COVID-19) pandemic in Giza, Egypt February 20, 2021. REUTERS/Amr Abdallah Dalsh

Soccer Football - Serie A - AC Milan Training - Milanello, Milan, Italy - February 20, 2021 AC Milan fans watch training from outside the Milanello training centre REUTERS/Daniele Mascolo

Soccer Football - Serie A - AC Milan Training - Milanello, Milan, Italy - February 20, 2021 AC Milan fans watch training from outside the Milanello training centre REUTERS/Daniele Mascolo

Soccer Football - Serie A - AC Milan Training - Milanello, Milan, Italy - February 20, 2021 AC Milan fans watch training from outside the Milanello training centre REUTERS/Daniele Mascolo

Soccer Football - Serie A - AC Milan Training - Milanello, Milan, Italy - February 20, 2021 AC Milan fans watch training from outside the Milanello training centre REUTERS/Daniele Mascolo

Soccer Football - Serie A - AC Milan Training - Milanello, Milan, Italy - February 20, 2021 AC Milan fans watch training from outside the Milanello training centre REUTERS/Daniele Mascolo

An Afghan policeman keeps watch at the site of a bomb blast in Kabul, Afghanistan February 20, 2021. REUTERS/Omar Sobhani

Women watch as members of indigenous communities and supporters of Ecuador's presidential candidate Yaku Perez march to demand a recount of votes cast during the February 7 presidential election, in Canar, Ecuador February 19, 2021. REUTERS/Santiago Arcos

Rugby Union - Premiership - Bath Rugby v Gloucester Rugby - Recreation Ground, Bath, Britain - February 19, 2021 A fan watches the match through a window Action Images/Andrew Boyers

U.S. President Joe Biden watches employees handle containers of vaccine as he tours a Pfizer manufacturing plant producing the coronavirus disease (COVID-19) vaccine in Kalamazoo, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner?

Soldiers keep watch in Cantagallo, an indigenous Shipibo-Conibo community, during the vaccination campaign against the coronavirus disease (COVID-19), in Lima, Peru February 19, 2021. REUTERS/Angela Ponce

Soldiers keep watch as a healthcare worker wearing personal protective equipment (PPE) talks to a man in Cantagallo, an indigenous Shipibo-Conibo community, during the vaccination campaign against the coronavirus disease (COVID-19), in Lima, Peru February 19, 2021. REUTERS/Angela Ponce

Palestinians watch the beach on a rainy evening in Gaza City February 19, 2021. REUTERS/Mohammed Salem

People watch a double rainbow on a rainy afternoon in the Israeli northern Kibbutz of Hukook February 19, 2021 REUTERS/Nir Elias

Tennis - Australian Open - Melbourne Park, Melbourne, Australia, February 19, 2021 Fans watch the semi final match between Greece's Stefanos Tsitsipas and Russia's Daniil Medvedev. Crowds are at a reduced capacity for this years event following the outbreak of the coronavirus disease (COVID-19) REUTERS/Kelly Defina

Tennis - Australian Open - Melbourne Park, Melbourne, Australia, February 19, 2021 Fans wearing protective face masks watch the semi final match between Greece's Stefanos Tsitsipas and Russia's Daniil Medvedev. Crowds are at a reduced capacity for this years event following the outbreak of the coronavirus disease (COVID-19) REUTERS/Loren Elliott

Tennis - Australian Open - Melbourne Park, Melbourne, Australia, February 19, 2021 Fans watch the semi final match between Greece's Stefanos Tsitsipas and Russia's Daniil Medvedev. Crowds are at a reduced capacity for this years event following the outbreak of the coronavirus disease (COVID-19) REUTERS/Asanka Brendon Ratnayake