Political scientist Agnieszka Lada-Konefal, director of the Auschwitz-Birkenau State Museum Piotr Cywinski, former President of the Bundestag Wolfgang Thierse, historian Peter Oliver Loew and former German Ambassador to Poland Rolf Nikel attend an event which aims to present a concept for a "Place of Remembrance and Encounter with Poland" in Berlin, Germany, September 15, 2021. REUTERS/Michele Tantussi/Pool

Political scientist Agnieszka Lada-Konefal attends an event which aims to present a concept for a "Place of Remembrance and Encounter with Poland" in Berlin, Germany, September 15, 2021. REUTERS/Michele Tantussi/Pool

Director of the Auschwitz-Birkenau State Museum Piotr Cywinski attends an event which aims to present a concept for a "Place of Remembrance and Encounter with Poland" in Berlin, Germany, September 15, 2021. REUTERS/Michele Tantussi/Pool

Director of the Auschwitz-Birkenau State Museum Piotr Cywinski attends an event which aims to present a concept for a "Place of Remembrance and Encounter with Poland" in Berlin, Germany, September 15, 2021. REUTERS/Michele Tantussi/Pool

Former President of the Bundestag Wolfgang Thierse attends an event which aims to present a concept for a "Place of Remembrance and Encounter with Poland" in Berlin, Germany, September 15, 2021. REUTERS/Michele Tantussi/Pool

Historian Peter Oliver Loew attends an event which aims to present a concept for a "Place of Remembrance and Encounter with Poland" in Berlin, Germany, September 15, 2021. REUTERS/Michele Tantussi/Pool

Former German Ambassador to Poland Rolf Nikel speaks as he attends an event that aims to present a concept for a "Place of Remembrance and Encounter with Poland" in Berlin, Germany, September 15, 2021. REUTERS/Michele Tantussi/Pool

Former German Ambassador to Poland Rolf Nikel attends an event with German Foreign Minister Heiko Maas that aims to present a concept for a "Place of Remembrance and Encounter with Poland" in Berlin, Germany, September 15, 2021. REUTERS/Michele Tantussi/Pool

Former German Ambassador to Poland Rolf Nikel speaks as he attends an event that aims to present a concept for a "Place of Remembrance and Encounter with Poland" in Berlin, Germany, September 15, 2021. REUTERS/Michele Tantussi/Pool

French President Emmanuel Macron hugs a child during a visit at Bouge primary school in Malpasse district of Marseille, France, September 2, 2021 as millions of children in France go back to school Thursday for the new academic year, wearing face masks as part of rules aimed at slowing down the spreading of COVID-19 in the country. Daniel Cole/Pool via REUTERS

French President Emmanuel Macron looks on during a visit at Bouge primary school in Malpasse district of Marseille, France, September 2, 2021 as millions of children in France go back to school Thursday for the new academic year, wearing face masks as part of rules aimed at slowing down the spreading of COVID-19 in the country. Daniel Cole/Pool via REUTERS

French President Emmanuel Macron speaks to the media under a broken ceiling during a visit at Bouge primary school in Malpasse district of Marseille, France, September 2, 2021 as millions of children in France go back to school Thursday for the new academic year, wearing face masks as part of rules aimed at slowing down the spreading of COVID-19 in the country. Daniel Cole/Pool via REUTERS

French President Emmanuel Macron visits Bouge primary school in Malpasse district of Marseille, France, September 2, 2021 as millions of children in France go back to school Thursday for the new academic year, wearing face masks as part of rules aimed at slowing down the spreading of COVID-19 in the country. Daniel Cole/Pool via REUTERS

French President Emmanuel Macron visits Bouge primary school in Malpasse district of Marseille, France, September 2, 2021 as millions of children in France go back to school Thursday for the new academic year, wearing face masks as part of rules aimed at slowing down the spreading of COVID-19 in the country. Daniel Cole/Pool via REUTERS

French President Emmanuel Macron speaks to the media during a visit at Bouge primary school in Malpasse district of Marseille, France, September 2, 2021 as millions of children in France go back to school Thursday for the new academic year, wearing face masks as part of rules aimed at slowing down the spreading of COVID-19 in the country. Daniel Cole/Pool via REUTERS

French President Emmanuel Macron gestures during a visit at Bouge primary school in Malpasse district of Marseille, France, September 2, 2021 as millions of children in France go back to school Thursday for the new academic year, wearing face masks as part of rules aimed at slowing down the spreading of COVID-19 in the country. Daniel Cole/Pool via REUTERS

A student raises their hand to speak during French President Emmanuel Macron's visit at Bouge primary school in Malpasse district of Marseille, France, September 2, 2021 as millions of children in France go back to school Thursday for the new academic year, wearing face masks as part of rules aimed at slowing down the spreading of COVID-19 in the country. Daniel Cole/Pool via REUTERS

French President Emmanuel Macron, flanked with Education, Youth and Sports Minister Jean-Michel Blanquer, looks on during a visit at Bouge primary school in Malpasse district of Marseille, France, September 2, 2021 as millions of children in France go back to school Thursday for the new academic year, wearing face masks as part of rules aimed at slowing down the spreading of COVID-19 in the country. Daniel Cole/Pool via REUTERS

French President Emmanuel Macron speaks with students during a visit at Bouge primary school in Malpasse district of Marseille, France, September 2, 2021 as millions of children in France go back to school Thursday for the new academic year, wearing face masks as part of rules aimed at slowing down the spreading of COVID-19 in the country. Daniel Cole/Pool via REUTERS

French President Emmanuel Macron speaks with students during a visit at Bouge primary school in Malpasse district of Marseille, France, September 2, 2021 as millions of children in France go back to school Thursday for the new academic year, wearing face masks as part of rules aimed at slowing down the spreading of COVID-19 in the country. Daniel Cole/Pool via REUTERS

French President Emmanuel Macron, flanked with Education, Youth and Sports Minister Jean-Michel Blanquer, speaks with students during a visit at Bouge primary school in Malpasse district of Marseille, France, September 2, 2021 as millions of children in France go back to school Thursday for the new academic year, wearing face masks as part of rules aimed at slowing down the spreading of COVID-19 in the country. Daniel Cole/Pool via REUTERS

French President Emmanuel Macron looks at a map during a visit at Bouge primary school in Malpasse district of Marseille September 2, 2021 as millions of children in France go back to school Thursday for the new academic year, wearing masks as part of rules aimed at slowing down the spreading of the coronavirus. Daniel Cole/Pool via REUTERS

French President Emmanuel Macron waves during a visit at Bouge primary school in Malpasse district of Marseille September 2, 2021 as millions of children in France go back to school Thursday for the new academic year, wearing masks as part of rules aimed at slowing down the spreading of the coronavirus. Daniel Cole/Pool via REUTERS

French President Emmanuel Macron takes a selfie with employees during a visit at Bouge primary school in Malpasse district of Marseille September 2, 2021 as millions of children in France go back to school Thursday for the new academic year, wearing masks as part of rules aimed at slowing down the spreading of the coronavirus. Daniel Cole/Pool via REUTERS

French President Emmanuel Macron hugs a child during a visit at Bouge primary school in Malpasse district of Marseille September 2, 2021 as millions of children in France go back to school Thursday for the new academic year, wearing masks as part of rules aimed at slowing down the spreading of the coronavirus. Daniel Cole/Pool via REUTERS

French President Emmanuel Macron looks on during a visit at Bouge primary school in Malpasse district of Marseille September 2, 2021 as millions of children in France go back to school Thursday for the new academic year, wearing masks as part of rules aimed at slowing down the spreading of the coronavirus. Daniel Cole/Pool via REUTERS

French President Emmanuel Macron looks on during a visit at Bouge primary school in Malpasse district of Marseille, France, September 2, 2021, as twelve million children went back to school on Thursday for the new academic year, wearing face masks as part of rules aimed at slowing down the spreading of COVID-19 in the country. Daniel Cole/Pool via REUTERS

An information screen with a Google announcement about the aim of carbon-free energy by 2030 is pictured during the company's presentation of a detailed investment plan for Germany outside the Google office in Berlin, Germany, August 31, 2021. REUTERS/Annegret Hilse

People sit in line as they wait to register next to the Transvaco coronavirus disease (COVID-19) vaccine train, after South Africa's rail company Transnet turned the train into a COVID-19 vaccination center on rails to help the government speed up its vaccine rollout in the country's remote communities, at the Springs train station on the East Rand, South Africa, August 30, 2021. Picture taken August 30, 2021. REUTERS/Siphiwe Sibeko

A health worker talks to people as they wait to register next to the Transvaco coronavirus disease (COVID-19) vaccine train, after South Africa's rail company Transnet turned the train into a COVID-19 vaccination center on rails to help the government speed up its vaccine rollout in the country's remote communities, at the Springs train station on the East Rand, South Africa, August 30, 2021. Picture taken August 30, 2021. REUTERS/Siphiwe Sibeko

A man is vaccinated inside the Transvaco coronavirus disease (COVID-19) vaccine train, as South Africa's rail company Transnet turned the train into a COVID-19 vaccination center on rails to help the government speed up its vaccine rollout in the country's remote communities, at the Springs train station on the East Rand, South Africa, August 30, 2021. Picture taken August 30, 2021. REUTERS/Siphiwe Sibeko

A health worker prepares herself as a man waits to register next to the Transvaco coronavirus disease (COVID-19) vaccine train, after South Africa's rail company Transnet turned the train into a COVID-19 vaccination center on rails to help the government speed up its vaccine rollout in the country's remote communities, at the Springs train station on the East Rand, South Africa, August 30, 2021. Picture taken August 30, 2021. REUTERS/Siphiwe Sibeko

Dennis Malattji takes his coronavirus disease (COVID-19) vaccine while a health worker looks on inside the Transvaco COVID-19 vaccine train, as South Africa's rail company Transnet turned the train into a COVID-19 vaccination center on rails to help the government speed up its vaccine rollout in the country's remote communities, at the Springs train station on the East Rand, South Africa, August 27, 2021. Picture taken August 27, 2021. REUTERS/Siphiwe Sibeko

A health worker takes a break, as South Africa's rail company Transnet turned a train (not in the picture) into a coronavirus disease (COVID-19) vaccination center on rails to help the government speed up its vaccine rollout in the country's remote communities, at the Springs train station on the East Rand, South Africa, August 27, 2021. Picture taken August 27, 2021. REUTERS/Siphiwe Sibeko

Belgian-British pilot Zara Rutherford, 19 departs for a round-the-world trip in a light aircraft, aiming to become the youngest female pilot to circle the planet alone, in Wevelgem, Belgium, August 18, 2021. REUTERS/Yves Herman

Belgian-British pilot Zara Rutherford, 19 poses for pictures before departing for a round-the-world trip in a light aircraft, aiming to become the youngest female pilot to circle the planet alone, in Wevelgem, Belgium, August 18, 2021. REUTERS/Yves Herman

Belgian-British pilot Zara Rutherford, 19 departs for a round-the-world trip in a light aircraft, aiming to become the youngest female pilot to circle the planet alone, in Wevelgem, Belgium, August 18, 2021. REUTERS/Yves Herman

Belgian-British pilot Zara Rutherford, 19 speaks with her father Sam Rutherford, as she prepares to departs for a round-the-world trip in a light aircraft, aiming to become the youngest female pilot to circle the planet alone, in Wevelgem, Belgium, August 18, 2021. REUTERS/Yves Herman

Belgian-British pilot Zara Rutherford, 19 prepares to depart for a round-the-world trip in a light aircraft, aiming to become the youngest female pilot to circle the planet alone, in Wevelgem, Belgium, August 18, 2021. REUTERS/Yves Herman

Belgian-British pilot Zara Rutherford, 19 departs for a round-the-world trip in a light aircraft, aiming to become the youngest female pilot to circle the planet alone, in Wevelgem, Belgium, August 18, 2021. REUTERS/Yves Herman

Belgian-British pilot Zara Rutherford, 19 departs for a round-the-world trip in a light aircraft, aiming to become the youngest female pilot to circle the planet alone, in Wevelgem, Belgium, August 18, 2021. REUTERS/Yves Herman

Belgian-British pilot Zara Rutherford, 19 departs for a round-the-world trip in a light aircraft, aiming to become the youngest female pilot to circle the planet alone, in Wevelgem, Belgium, August 18, 2021. REUTERS/Yves Herman

Belgian-British pilot Zara Rutherford, 19 departs for a round-the-world trip in a light aircraft, aiming to become the youngest female pilot to circle the planet alone, in Wevelgem, Belgium, August 18, 2021. REUTERS/Yves Herman

Belgian-British pilot Zara Rutherford, 19 departs for a round-the-world trip in a light aircraft, aiming to become the youngest female pilot to circle the planet alone, in Wevelgem, Belgium, August 18, 2021. REUTERS/Yves Herman

Belgian-British pilot Zara Rutherford, 19 departs for a round-the-world trip in a light aircraft, aiming to become the youngest female pilot to circle the planet alone, in Wevelgem, Belgium, August 18, 2021. REUTERS/Yves Herman

Belgian-British pilot Zara Rutherford, 19, waves as she departs for a round-the-world trip in a light aircraft, aiming to become the youngest female pilot to circle the planet alone, in Wevelgem, Belgium, August 18, 2021. REUTERS/Yves Herman TPX IMAGES OF THE DAY

Belgian-British pilot Zara Rutherford, 19 waves as she departs for a round-the-world trip in a light aircraft, aiming to become the youngest female pilot to circle the planet alone, in Wevelgem, Belgium, August 18, 2021. REUTERS/Yves Herman

Belgian-British pilot Zara Rutherford, 19 poses for pictures before departing for a round-the-world trip in a light aircraft, aiming to become the youngest female pilot to circle the planet alone, in Wevelgem, Belgium, August 18, 2021. REUTERS/Yves Herman

Belgian-British pilot Zara Rutherford, 19 poses for pictures before departing for a round-the-world trip in a light aircraft, aiming to become the youngest female pilot to circle the planet alone, in Wevelgem, Belgium, August 18, 2021. REUTERS/Yves Herman

Belgian-British pilot Zara Rutherford, 19 attends a news conference before departing for a round-the-world trip in a light aircraft, aiming to become the youngest female pilot to circle the planet alone, in Wevelgem, Belgium, August 18, 2021. REUTERS/Yves Herman

Belgian-British pilot Zara Rutherford, 19 attends a news conference before departing for a round-the-world trip in a light aircraft, aiming to become the youngest female pilot to circle the planet alone, in Wevelgem, Belgium, August 18, 2021. REUTERS/Yves Herman

Belgian-British pilot Zara Rutherford, 19 attends a news conference before departing for a round-the-world trip in a light aircraft, aiming to become the youngest female pilot to circle the planet alone, in Wevelgem, Belgium, August 18, 2021. REUTERS/Yves Herman

Belgian-British pilot Zara Rutherford, 19 attends a news conference before departing for a round-the-world trip in a light aircraft, aiming to become the youngest female pilot to circle the planet alone, in Wevelgem, Belgium, August 18, 2021. REUTERS/Yves Herman

Belgian-British pilot Zara Rutherford, 19 poses for pictures before departing for a round-the-world trip in a light aircraft, aiming to become the youngest female pilot to circle the planet alone, in Wevelgem, Belgium, August 18, 2021. REUTERS/Yves Herman

An Israeli soldier aims a weapon during a Palestinian protest over the killing of four Palestinians by Israeli forces in a clash, near Israeli settlement of Beit El in the Israeli-occupied West Bank August 17, 2021. REUTERS/Mohamad Torokman

A visually impaired visitor, Farid el Manssouri, touches during the exhibition "The Blind Spot" by artist Jasper Udink ten Cate and experience designer Jeroen Prins, aimed for blind and visually impaired visitors to appreciate art by touching and smelling at Centraal Museum in Utrecht, Netherlands, August 14, 2021. Picture taken August 14, 2021. REUTERS/Eva Plevier

A visually impaired visitor, Farid el Manssouri, touches during the exhibition "The Blind Spot" by artist Jasper Udink ten Cate and experience designer Jeroen Prins, aimed for blind and visually impaired visitors to appreciate art by touching and smelling at Centraal Museum in Utrecht, Netherlands, August 14, 2021. Picture taken August 14, 2021. REUTERS/Eva Plevier

A visually impaired visitor, Farid el Manssouri, touches during the exhibition "The Blind Spot" by artist Jasper Udink ten Cate and experience designer Jeroen Prins, aimed for blind and visually impaired visitors to appreciate art by touching and smelling at Centraal Museum in Utrecht, Netherlands, August 14, 2021. Picture taken August 14, 2021. REUTERS/Eva Plevier