Morries Hall invokes his Fifth Amendment constitutional right against self-incrimination on the thirteenth day of former Minneapolis police officer Derek Chauvin's trial for second-degree murder, third-degree murder and second-degree manslaughter in the death of George Floyd in Minneapolis, Minnesota, U.S. April 14, 2021 in this courtroom sketch. REUTERS/Jane Rosenberg

Morries Hall invokes his Fifth Amendment constitutional right against self-incrimination on the thirteenth day of former Minneapolis police officer Derek Chauvin's trial for second-degree murder, third-degree murder and second-degree manslaughter in the death of George Floyd in Minneapolis, Minnesota, U.S. April 14, 2021 in this courtroom sketch. REUTERS/Jane Rosenberg

The former chief medical examiner of Maryland, Dr. David Fowler, answers questions during the thirteenth day of the trial of former Minneapolis police officer Derek Chauvin for second-degree murder, third-degree murder and second-degree manslaughter in the death of George Floyd in Minneapolis, Minnesota, U.S. April 14, 2021 in a still image from video. Pool via REUTERS

Morries Hall invokes his Fifth Amendment constitutional right against self-incrimination during the thirteenth day of the trial of former Minneapolis police officer Derek Chauvin for second-degree murder, third-degree murder and second-degree manslaughter in the death of George Floyd in Minneapolis, Minnesota, U.S. April 14, 2021 in a still image from video. Pool via REUTERS

People shop for vegetables at a souk in Beirut, Lebanon April 12, 2021. Picture taken April 12, 2021. REUTERS/Issam Abdallah

A retired woman talks with a friend (not pictured) inside a bar, amid the coronavirus disease (COVID-19) outbreak, in Barcelona, Spain April 14, 2021. REUTERS/Nacho Doce

A retired woman wearing a protective face mask walks past a hairdressing salon, amid the coronavirus disease (COVID-19) outbreak, in Barcelona, Spain April 14, 2021. REUTERS/Nacho Doce

A woman wearing a protective face mask walks past a shop, amid the coronavirus disease (COVID-19) outbreak, in Barcelona, Spain April 14, 2021. REUTERS/Nacho Doce

Rescuers remove a training dummy from a river during flood control exercises in the city of Svetlograd in Stavropol Region, Russia April 14, 2021. REUTERS/Eduard Korniyenko

President of Brazil's Senate Rodrigo Pacheco speaks with Brazil's Minister of Health Marcelo Queiroga during a news conference after the meeting of the National COVID-19 Coordinator to combat the pandemics, in Brasilia, Brazil, April 14, 2021. REUTERS/Adriano Machado

President of Brazil's Senate Rodrigo Pacheco and Brazil's Minister of Health Marcelo Queiroga are seen after a news conference after the meeting of the National COVID-19 Coordinator to combat the pandemics, in Brasilia, Brazil, April 14, 2021. REUTERS/Adriano Machado

President of Brazil's Senate Rodrigo Pacheco looks on during a news conference after the meeting of the National COVID-19 Coordinator to combat the pandemics, in Brasilia, Brazil, April 14, 2021. REUTERS/Adriano Machado

Brazil's Minister of Health Marcelo Queiroga looks on during news conference after the meeting of the National COVID-19 Coordinator to combat the pandemics, in Brasilia, Brazil, April 14, 2021. REUTERS/Adriano Machado

President of Brazil's Senate Rodrigo Pacheco adjusts his protective face mask during a news conference after the meeting of the National COVID-19 Coordinator to combat the pandemics, in Brasilia, Brazil, April 14, 2021. REUTERS/Adriano Machado

A plate of Fattoush, a popular salad, is seen at Hala Sheikh's house in Beirut, Lebanon April 13, 2021. Picture taken April 13, 2021. REUTERS/Issam Abdallah

Hala Sheikh prepares Fattoush, a popular salad, at her house in Beirut, Lebanon April 13, 2021. Picture taken April 13, 2021. REUTERS/Issam Abdallah

Hala Sheikh prepares Fattoush, a popular salad, at her house in Beirut, Lebanon April 13, 2021. Picture taken April 13, 2021. REUTERS/Issam Abdallah

Director Avril Haines of the Office of the Director of National Intelligence (ODNI), speaks with CIA Director William Burns and FBI Director Christopher Wray prior to them testifying during a Senate Select Committee on Intelligence hearing about worldwide threats, on Capitol Hill in Washington, DC, U.S., April 14, 2021. Saul Loeb/Pool via REUTERS

CIA Director William Burns and FBI Director Christopher Wray speak prior to testifying during a Senate Select Committee on Intelligence hearing about worldwide threats, on Capitol Hill in Washington, DC, U.S., April 14, 2021. Saul Loeb/Pool via REUTERS

Director Avril Haines of the Office of the Director of National Intelligence (ODNI), speaks with CIA Director William Burns, prior to testifying during a Senate Select Committee on Intelligence hearing about worldwide threats, on Capitol Hill in Washington, DC, U.S., April 14, 2021. Saul Loeb/Pool via REUTERS

FBI Director Christopher Wray speaks with U.S. Senator Marco Rubio, Democrat of Florida, prior to testifying during a Senate Select Committee on Intelligence hearing about worldwide threats, on Capitol Hill in Washington, DC, U.S., April 14, 2021. Saul Loeb/Pool via REUTERS

CIA Director William Burns arrives to testify during a Senate Select Committee on Intelligence hearing about worldwide threats, on Capitol Hill in Washington, DC, U.S., April 14, 2021. Saul Loeb/Pool via REUTERS

Britain's Princess Anne views a Youth Training Programme during a visit to the Royal Yacht Squadron, after Prince Philip, husband of Queen Elizabeth, died at the age of 99, in Cowes on the Isle of Wight, Britain April 14, 2021. Ben Birchall/Pool via REUTERS

Britain's Princess Anne views a Youth Training Programme during a visit to the Royal Yacht Squadron, after Prince Philip, husband of Queen Elizabeth, died at the age of 99, in Cowes on the Isle of Wight, Britain April 14, 2021. Ben Birchall/Pool via REUTERS

Britain's Princess Anne views a Youth Training Programme during a visit to the Royal Yacht Squadron, after Prince Philip, husband of Queen Elizabeth, died at the age of 99, in Cowes on the Isle of Wight, Britain April 14, 2021. Ben Birchall/Pool via REUTERS

Britain's Princess Anne views a Youth Training Programme during a visit to the Royal Yacht Squadron, after Prince Philip, husband of Queen Elizabeth, died at the age of 99, in Cowes on the Isle of Wight, Britain April 14, 2021. Ben Birchall/Pool via REUTERS

Britain's Princess Anne views a Youth Training Programme during a visit to the Royal Yacht Squadron, after Prince Philip, husband of Queen Elizabeth, died at the age of 99, in Cowes on the Isle of Wight, Britain April 14, 2021. Ben Birchall/Pool via REUTERS

Britain's Princess Anne unveals a plaque during her visit to the Royal Victoria Yacht Club, after Prince Philip, husband of Queen Elizabeth, died at the age of 99, in Fishbourne on the Isle of Wight, Britain April 14, 2021. Ben Birchall/Pool via REUTERS

Britain's Princess Anne watches the Royal Victoria Yacht Club cadets, after Prince Philip, husband of Queen Elizabeth, died at the age of 99, during her visit on the Isle of Wight, Britain April 14, 2021. Ben Birchall/Pool via REUTERS

Britain's Princess Anne arrives on a boat to the Royal Victoria Yacht Club, after Prince Philip, husband of Queen Elizabeth, died at the age of 99, in Fishbourne on the Isle of Wight, Britain April 14, 2021. Ben Birchall/Pool via REUTERS

Britain's Princess Anne arrives to the Royal Victoria Yacht Club, after Prince Philip, husband of Queen Elizabeth, died at the age of 99, in Fishbourne on the Isle of Wight, Britain April 14, 2021. Ben Birchall/Pool via REUTERS

Britain's Princess Anne visits the Royal Victoria Yacht Club, after Prince Philip, husband of Queen Elizabeth, died at the age of 99, in Fishbourne on the Isle of Wight, Britain April 14, 2021. Ben Birchall/Pool via REUTERS

Director Avril Haines of the Office of the Director of National Intelligence (ODNI), speaks with CIA Director William Burns and FBI Director Christopher Wray prior to them testifying during a Senate Select Committee on Intelligence hearing about worldwide threats, on Capitol Hill in Washington, DC, U.S., April 14, 2021. Saul Loeb/Pool via REUTERS

National Security Agency (NSA) Director General Paul Nakasone testifies during a Senate Select Committee on Intelligence hearing about worldwide threats, on Capitol Hill in Washington, DC, U.S., April 14, 2021. Saul Loeb/Pool via REUTERS

National Security Agency (NSA) Director General Paul Nakasone testifies during a Senate Select Committee on Intelligence hearing about worldwide threats, on Capitol Hill in Washington, DC, U.S., April 14, 2021. Saul Loeb/Pool via REUTERS

FBI Director Christopher Wray testifies during a Senate Select Committee on Intelligence hearing about worldwide threats, on Capitol Hill in Washington, DC, U.S., April 14, 2021. Saul Loeb/Pool via REUTERS

CIA Director William Burns testifies during a Senate Select Committee on Intelligence hearing about worldwide threats, on Capitol Hill in Washington, DC, U.S., April 14, 2021. Saul Loeb/Pool via REUTERS

FBI Director Christopher Wray testifies during a Senate Select Committee on Intelligence hearing about worldwide threats, on Capitol Hill in Washington, DC, U.S., April 14, 2021. Saul Loeb/Pool via REUTERS

CIA Director William Burns testifies during a Senate Select Committee on Intelligence hearing about worldwide threats, on Capitol Hill in Washington, DC, U.S., April 14, 2021. Saul Loeb/Pool via REUTERS

FBI Director Christopher Wray testifies during a Senate Select Committee on Intelligence hearing about worldwide threats, on Capitol Hill in Washington, DC, U.S., April 14, 2021. Saul Loeb/Pool via REUTERS

Tennis - ATP Masters 1000 - Monte Carlo Masters - Monte-Carlo Country Club, Roquebrune-Cap-Martin, France - April 14, 2021 Germany's Alexander Zverev in action during his second round match against Italy's Lorenzo Sonego REUTERS/Eric Gaillard

SwatchPAY! watches, usable for pay-by-the-wrist contactless payments, are seen at the shop of Swiss watch manufacturer Swatch in Zurich, Switzerland April 14, 2021. REUTERS/Arnd Wiegmann

Flik Flak children watches are seen at the shop of Swiss watch manufacturer Swatch in Zurich, Switzerland April 14, 2021. REUTERS/Arnd Wiegmann

A newly opened shop of Swiss watch manufacturer Swatch is seen in Zurich, Switzerland April 14, 2021. REUTERS/Arnd Wiegmann

SwatchPAY! watches, usable for pay-by-the-wrist contactless payments, are seen at the shop of Swiss watch manufacturer Swatch in Zurich, Switzerland April 14, 2021. REUTERS/Arnd Wiegmann

Britain's Princess Anne signs the visitors book at the Royal Victoria Yacht Club, after Prince Philip, husband of Queen Elizabeth, died at the age of 99, in Cowes on the Isle of Wight, Britain April 14, 2021. Ben Birchall/Pool via REUTERS

Director Avril Haines of the Office of the Director of National Intelligence (ODNI) testifies during a Senate Select Committee on Intelligence hearing about worldwide threats, on Capitol Hill in Washington, DC, U.S., April 14, 2021. Saul Loeb/Pool via REUTERS

Director Avril Haines of the Office of the Director of National Intelligence (ODNI) testifies during a Senate Select Committee on Intelligence hearing about worldwide threats, on Capitol Hill in Washington, DC, U.S., April 14, 2021. Saul Loeb/Pool via REUTERS

Director Avril Haines of the Office of the Director of National Intelligence (ODNI) adjusts her mask as she testifies during a Senate Select Committee on Intelligence hearing about worldwide threats, on Capitol Hill in Washington, DC, U.S., April 14, 2021. Saul Loeb/Pool via REUTERS

Director Avril Haines of the Office of the Director of National Intelligence (ODNI) testifies during a Senate Select Committee on Intelligence hearing about worldwide threats, on Capitol Hill in Washington, DC, U.S., April 14, 2021. Saul Loeb/Pool via REUTERS

Director Avril Haines of the Office of the Director of National Intelligence (ODNI) testifies during a Senate Select Committee on Intelligence hearing about worldwide threats, on Capitol Hill in Washington, DC, U.S., April 14, 2021. Saul Loeb/Pool via REUTERS

U.S. Vice President Kamala Harris looks on during a virtual roundtable of experts on the Northern Triangle, in the Vice President's Ceremonial Office at the White House in Washington, D.C., U.S. April 14, 2021. REUTERS/Kevin Lamarque

People are seen in a crowded marketplace amidst the spread of the coronavirus disease (COVID-19), in the old quarters of Delhi, India, April 14, 2021. REUTERS/Danish Siddiqui

People wait to have their Iftar (breaking fast) meals on the first day of the Muslim fasting month of Ramadan, amidst the spread of the coronavirus disease (COVID-19), at Jama Masjid in the old quarters of Delhi, India, April 14, 2021. REUTERS/Danish Siddiqui

People wait to have their Iftar (breaking fast) meals on the first day of the Muslim fasting month of Ramadan, amidst the spread of the coronavirus disease (COVID-19), at Jama Masjid in the old quarters of Delhi, India, April 14, 2021. REUTERS/Danish Siddiqui

People are seen after offering their prayers on the first day of the Muslim fasting month of Ramadan, amidst the spread of the coronavirus disease (COVID-19), at Jama Masjid in the old quarters of Delhi, India, April 14, 2021. REUTERS/Danish Siddiqui

People wait to have their Iftar (breaking fast) meals on the first day of the Muslim fasting month of Ramadan, amidst the spread of the coronavirus disease (COVID-19), at Jama Masjid in the old quarters of Delhi, India, April 14, 2021. REUTERS/Danish Siddiqui

People walk after offering their prayers on the first day of the Muslim fasting month of Ramadan, amidst the spread of the coronavirus disease (COVID-19), at Jama Masjid in the old quarters of Delhi, India, April 14, 2021. REUTERS/Danish Siddiqui

People wait to have their Iftar (breaking fast) meals on the first day of the Muslim fasting month of Ramadan, amidst the spread of the coronavirus disease (COVID-19), at Jama Masjid in the old quarters of Delhi, India, April 14, 2021. REUTERS/Danish Siddiqui

People sit after offering their prayers on the first day of the Muslim fasting month of Ramadan, amidst the spread of the coronavirus disease (COVID-19), at Jama Masjid in the old quarters of Delhi, India, April 14, 2021. REUTERS/Danish Siddiqui

An Afghan boy watches a British soldier on patrol in Helmand province, southern Afghanistan June 20, 2006. REUTERS/Ahmad Masood (AFGHANISTAN)

A British Army Gurkha soldier checks his rifle in a fortified man-made hilltop position, near Camp Delhi in southern Helmand, Afghanistan, November 7, 2007. The hill and others like it in the area were built by the British Army in the late 1800's and are still used today. REUTERS/Steve Lewis (AFGHANISTAN)

British soldiers from B Company, 2 Mercian, set off on an operation in Malgir, Helmand province July 27, 2009. REUTERS/Omar Sobhani (AFGHANISTAN CONFLICT MILITARY IMAGES OF THE DAY)

British soldiers cover themselves as helicopters land at Camp Armadillo in Helmand Province April 25, 2008. REUTERS/Omar Sobhani (AFGHANISTAN)

British soldiers from 3 SCOTS clean their rifles in a Taliban-held area of Afghanistan's Helmand province during Operation Panther's Claw, July 11, 2009. British troops have faced heavy fighting during the operation, a bid to clear out Taliban-held areas north of the provincial capital Lashkar Gah, while U.S. Marines stage a massive operation of their own further south. Picture taken July 11, 2009. REUTERS/Ahmad Masood (AFGHANISTAN MILITARY CONFLICT IMAGES OF THE DAY)

British soldiers cover themselves from dust as a helicopter lands at the Malgeer village in Helmand province July 26, 2009. REUTERS/Omar Sobhani (AFGHANISTAN CONFLICT MILITARY IMAGES OF THE DAY)

An Afghan National Army (ANA) hands a cup of tea to a German Bundeswehr army soldier (L) as a Belgian soldier (C) looks on, of the International Security Assistance Force (ISAF), in a combat position during a mission in Chahar Dara in the outskirts of Kunduz, December 17, 2009. German Bundeswehr army soldiers and Afghan National Army (ANA) units started an operation against insurgents in the area on Wednesday. REUTERS/Fabrizio Bensch (AFGHANISTAN - Tags: MILITARY CONFLICT IMAGES OF THE DAY)

German Bundeswehr army soldiers of the 263rd paratroopers unit of the International Security Assistance Force (ISAF) take a break during a mission to secure the perimeters of a reception in Kunduz to commemorate the 18th anniversary of the reunification of Germany October 3, 2008. REUTERS/Fabrizio Bensch (AFGHANISTAN)

A soldier of the German armed forces Bundeswehr observes the area as villagers look at other Bundeswehr soldiers who are performing a recovery operation on a "Fuchs" armoured personnel carrier, during a mission in Kunduz district, April 28, 2009. REUTERS/Kai Pfaffenbach (AFGHANISTAN MILITARY POLITICS IMAGES OF THE DAY)

An Afghan and his camels walk past of a 'Fuchs' armoured personnel carrier of the German Bundeswehr army from the 4th company, 391 mechanised infantry battalion of the International Security Assistance Force (ISAF) in Chahar Dara, in the outskirts of Kunduz, December 15, 2009. REUTERS/Fabrizio Bensch (AFGHANISTAN - Tags: MILITARY CONFLICT IMAGES OF THE DAY)

German Bundeswehr army soldiers of the International Security Assistance Force (ISAF) stand near where they discovered an illegal weapon cache near the German army camp in Kunduz, September 25, 2008. German army found a large weapon cache of 25 soviet army artillery shells. REUTERS/Fabrizio Bensch (AFGHANISTAN)

A German soldier stands on a tank during a training session of the Quick Responce Force in the German camp in Mazar e Sharif August 21, 2009. REUTERS/Ruben Sprich (AFGHANISTAN CONFLICT POLITICS MILITARY IMAGES OF THE DAY)

A soldier of German armed forces Bundeswehr sits on top of his armored vehicle as he observes the area during a night mission in Kundus district, early April 25, 2009. Picture is taken on long time exposure. REUTERS/Kai Pfaffenbach (AFGHANISTAN CONFLICT POLITICS IMAGES OF THE DAY)

Afghan children run beside a Marder armoured personnel carrier (APC) of the German Bundeswehr armed forces with the 2nd armoured infantryman battalion 261 during a mission in Chahar Dara district in the outskirts of Kunduz, northern Afghanistan, December 16, 2010. REUTERS/Fabrizio Bensch (AFGHANISTAN - Tags: MILITARY CONFLICT IMAGES OF THE DAY)

German Bundeswehr army soldiers walk in front of an armoured personnel carrier Marder in their combat outpost OP North, near Baghlan, in northern Afghanistan, December 6, 2012. Pictures taken with long time exposer. REUTERS/Fabrizio Bensch (AFGHANISTAN - Tags: MILITARY CONFLICT TPX IMAGES OF THE DAY POLITICS)

Victims of a blast at the German embassy are driven to a hospital in the back of a truck in Kabul January 17, 2009. A suicide car bomb exploded outside the embassy and a U.S. base in the Afghan capital on Saturday, killing three civilians, witnesses said. REUTERS/Ahmad Masood (AFGHANISTAN)

A German Bundeswehr army paratrooper sniper of the Task Force Kunduz opens fire next to a mascot during a drill in Kunduz, northern Afghanistan, December 8, 2010. REUTERS/Fabrizio Bensch (AFGHANISTAN - Tags: MILITARY CONFLICT IMAGES OF THE DAY)

A German Bundeswehr army soldier with the 3rd company of the Quick Reaction Force (QRF) works out in a combat outpost in Chahar Dara district in the outskirts of Kunduz, northern Afghanistan, May 11, 2010. REUTERS/Fabrizio Bensch (AFGHANISTAN - Tags: MILITARY CONFLICT IMAGES OF THE DAY)

A soldier of German armed forces Bundeswehr sits inside an armoured personnel carrier Fuchs before he goes on a night foot patrol in Kundus district April 27, 2009. REUTERS/Kai Pfaffenbach (AFGHANISTAN POLITICS CONFLICT IMAGES OF THE DAY)

German Bundeswehr army soldiers of the ISAF Quick Reaction Force (QRF) open fire during a night drill in the Marmal mountains near Masar-i-Sharif, north of Kabul, September 16, 2008. Picture is taken through a night vision device. REUTERS/Fabrizio Bensch (AFGHANISTAN)

A U.S. Army Blackhawk MEDEVAC helicopter with Kunduz Dustoff Charlie company of the Task force Mustang flies next to German Bundeswehr army medics as they pose for their unit group picture in the army camp in Kunduz, northern Afghanistan, December 17, 2010. REUTERS/Fabrizio Bensch (AFGHANISTAN - Tags: MILITARY CONFLICT IMAGES OF THE DAY)

A German Bundeswehr army military police soldier casts a shadow during a joint mission with U.S. army soldiers with the 137th military police detachment in Nawabad, north of Kunduz, northern Afghanistan December 11, 2010. REUTERS/Fabrizio Bensch (AFGHANISTAN - Tags: MILITARY CONFLICT IMAGES OF THE DAY)

Afghan villagers hold up their muddy shovels and the money they received from military policemen of German armed forces Bundeswehr after recovering an armoured personnel carrier (APC) "Dingo" from a muddy road during a mission in Aliabad district near Kunduz, April 29, 2009. A similar APC was attacked at the same time by a suicide bomber on a street nearby. Five German soldiers were injured in the attack. REUTERS/Kai Pfaffenbach (AFGHANISTAN MILITARY CONFLICT IMAGES OF THE DAY)