The Star of David is seen on the facade of a synagogue in Paris France, December 10, 2018. REUTERS/Gonzalo Fuentes

The Star of David is seen on the facade of a synagogue in Paris France, December 10, 2018. REUTERS/Gonzalo Fuentes

The Star of David is seen on the facade of a synagogue in Paris France, December 10, 2018. REUTERS/Gonzalo Fuentes

The Star of David is seen on the facade of a synagogue in Paris France, December 10, 2018. REUTERS/Gonzalo Fuentes

The Star of David is seen on the facade of a synagogue in Paris France, December 10, 2018. REUTERS/Gonzalo Fuentes

Dohany Street Synagogue is seen in Budapest, Hungary, October 12, 2018. Picture taken October 12, 2018. REUTERS/Bernadett Szabo

The remains of a synagogue are seen in the center of Baghdad, Iraq April 6, 2018. Picture taken April 6, 2018. REUTERS/Wissm Al-Okili

The interior remains of a synagogue are seen in the center of Baghdad, Iraq April 6, 2018. Picture taken April 6, 2018. REUTERS/Wissm Al-Okili

The facade of Magen Abraham, Beirut's synagogue, in downtown Beirut, Lebanon January 29, 2018. Picture taken January 29, 2018. REUTERS/Mohamed Azakir

A view of Maghen Abraham, Beirut's synagogue, in downtown Beirut, Lebanon January 29, 2018. Picture taken January 29, 2018. REUTERS/Mohamed Azakir

The facade of Maghen Abraham, Beirut's synagogue, in downtown Beirut, Lebanon January 29, 2018. Picture taken January 29, 2018. REUTERS/Mohamed Azakir

Maghen Abraham, Beirut's synagogue, is seen in downtown Beirut, Lebanon January 29, 2018. Picture taken January 29, 2018. REUTERS/Mohamed Azakir

A Jewish man prepares for a morning prayer inside the High Synagogue in Prague, Czech Republic August 25, 2017. REUTERS/David W Cerny

Firemen spray the burned Beth Hamedrash synagogue in New York City, U.S., May 14, 2017. REUTERS/Joe Penney

Firemen spray the burned Beth Hamedrash synagogue in New York City, U.S., May 14, 2017. REUTERS/Joe Penney

Firemen spray the burned Beth Hamedrash synagogue in New York City, U.S., May 14, 2017. REUTERS/Joe Penney

Firemen spray the burned Beth Hamedrash synagogue in New York City, U.S., May 14, 2017. REUTERS/Joe Penney

Firemen spray water at the burned Beth Hamedrash synagogue in New York City, U.S., May 14, 2017. REUTERS/Joe Penney TPX IMAGES OF THE DAY

A synagogue is pictured in Ulm, Germany, April 6, 2017. REUTERS/Michaela Rehle

London rabbi Julia Neuberger poses for a photograph with the old German passport of her grandmother, Hermine Sara Rosenthal, at the West London Synagogue in London, Britain September 20, 2016. REUTERS/Stefan Wermuth TPX IMAGES OF THE DAY

London rabbi Julia Neuberger poses for a photograph with the old German passport of her grandmother, Hermine Sara Rosenthal, at the West London Synagogue in London, Britain September 20, 2016. REUTERS/Stefan Wermuth

London rabbi Julia Neuberger poses for a photograph at the West London Synagogue in London, Britain September 20, 2016. REUTERS/Stefan Wermuth

London rabbi Julia Neuberger poses for a photograph with the old German passport of her grandmother, Hermine Sara Rosenthal, at the West London Synagogue in London, Britain September 20, 2016. REUTERS/Stefan Wermuth

London rabbi Julia Neuberger poses for a photograph with the old German passport of her grandmother, Hermine Sara Rosenthal, at the West London Synagogue in London, Britain September 20, 2016. REUTERS/Stefan Wermuth

London rabbi Julia Neuberger looks at the old German passport of her grandmother, Hermine Sara Rosenthal, at the West London Synagogue in London, Britain September 20, 2016. REUTERS/Stefan Wermuth

The old German passport of Hermine Sara Rosenthal, the grandmother of London rabbi Julia Neuberger, is seen at the West London Synagogue in London, Britain September 20, 2016. REUTERS/Stefan Wermuth

London rabbi Julia Neuberger poses for a photograph with the old German passport of her grandmother, Hermine Sara Rosenthal, at the West London Synagogue in London, Britain September 20, 2016. REUTERS/Stefan Wermuth

The old German passport of Hermine Sara Rosenthal, the grandmother of London rabbi Julia Neuberger, is seen at the West London Synagogue in London, Britain September 20, 2016. REUTERS/Stefan Wermuth

The old German passport of Hermine Sara Rosenthal, the grandmother of London rabbi Julia Neuberger, is seen at the West London Synagogue in London, Britain September 20, 2016. REUTERS/Stefan Wermuth

The old German passport of Hermine Sara Rosenthal, the grandmother of London rabbi Julia Neuberger, is seen at the West London Synagogue in London, Britain September 20, 2016. REUTERS/Stefan Wermuth

The old German passports of the grandparents of London rabbi Julia Neuberger is seen at the West London Synagogue in London, Britain September 20, 2016. REUTERS/Stefan Wermuth

London rabbi Julia Neuberger holds the old German passport of her grandmother Hermine Sara Rosenthal at the West London Synagogue in London, Britain September 20, 2016. REUTERS/Stefan Wermuth

The old German passports of Ludwig (L) and Hermine Sara Rosenthal, the grandparents of London rabbi Julia Neuberger, are seen at the West London Synagogue in London, Britain September 20, 2016. REUTERS/Stefan Wermuth

The old German passport of Hermine Sara Rosenthal, the grandmother of London rabbi Julia Neuberger, is seen at the West London Synagogue in London, Britain September 20, 2016. REUTERS/Stefan Wermuth

The old German passport of Hermine Sara Rosenthal, the grandmother of London rabbi Julia Neuberger, is seen at the West London Synagogue in London, Britain September 20, 2016. REUTERS/Stefan Wermuth

Ultra-Orthodox Jewish men pray inside a synagogue during the funeral ceremony of Rabbi Raphael Shmuelevich, head of the Mir Yeshiva (Jewish seminary), who died on Monday at the age of 78, in Jerusalem's Mea Shearim neighbourhood January 19, 2016. REUTERS/Ronen Zvulun

Pope Francis gestures at the end of his visit at Rome's Great Synagogue, Italy January 17, 2016. REUTERS/Alessandro Bianchi

A member of the Jewish community attends Pope Francis' visit at Rome's Great Synagogue, Italy January 17, 2016. REUTERS/Alessandro Bianchi

Pope Francis (L) and chief Rabbi Riccardo Di Segni (C) stand during his visit at Rome's Great Synagogue, Italy January 17, 2016. REUTERS/Alessandro Bianchi

Pope Francis greets as he leaves at the end of his visit at the Rome's Great Synagogue, Italy January 17, 2016. REUTERS/Alessandro Bianchi

Pope Francis holds a goblet which he received as a gift during his visit at Rome's Great Synagogue, Italy January 17, 2016. REUTERS/Alessandro Bianchi

Pope Francis delivers his speech during his visit at Rome's Great Synagogue, Italy January 17, 2016. REUTERS/Alessandro Bianchi

Pope Francis delivers his speech during his visit at Rome's Great Synagogue, Italy January 17, 2016. REUTERS/Alessandro Bianchi

Pope Francis greets chief Rabbi Riccardo Di Segni during his visit at Rome's Great Synagogue, Italy January 17, 2016. REUTERS/Alessandro Bianchi

Pope Francis delivers his speech during his visit at Rome's Great Synagogue, Italy January 17, 2016. REUTERS/Alessandro Bianchi

Pope Francis delivers his speech during his visit at Rome's Great Synagogue, Italy January 17, 2016. REUTERS/Alessandro Bianchi

Pope Francis greets chief Rabbi Riccardo Di Segni during his visit at Rome's Great Synagogue, Italy January 17, 2016. REUTERS/Alessandro Bianchi TPX IMAGES OF THE DAY

Pope Francis delivers his speech during his visit at Rome's Great Synagogue, Italy January 17, 2016. REUTERS/Alessandro Bianchi

Pope Francis listens to the speech of chief Rabbi Riccardo Di Segni during his visit at Rome's Great Synagogue, Italy January 17, 2016. REUTERS/Alessandro Bianchi

Pope Francis (L) listens to the speech of chief Rabbi Riccardo Di Segni during his visit at the Rome's Great Synagogue, Italy January 17, 2016. REUTERS/Alessandro Bianchi

Pope Francis listens to the speech of chief Rabbi Riccardo Di Segni during his visit at Rome's Great Synagogue, Italy January 17, 2016. REUTERS/Alessandro Bianchi

Pope Francis (L) listens to the speech of chief Rabbi Riccardo Di Segni during his visit at Rome's Great Synagogue, Italy January 17, 2016. REUTERS/Alessandro Bianchi

Pope Francis (L) listens to the speech of chief Rabbi Riccardo Di Segni during his visit at Rome's Great Synagogue, Italy January 17, 2016. REUTERS/Alessandro Bianchi

Pope Francis (L) sits during his visit at Rome's Great Synagogue, Italy January 17, 2016. REUTERS/Alessandro Bianchi

Pope Francis is greeted as he arrives at Rome's Great Synagogue, Italy January 17, 2016. REUTERS/Alessandro Bianchi

Pope Francis is greeted as he arrives at Rome's Great Synagogue, Italy January 17, 2016. REUTERS/Alessandro Bianchi

Pope Francis visits Rome's Great Synagogue, Italy January 17, 2016. REUTERS/Alessandro Bianchi

Pope Francis visits the Rome's Great Synagogue, Italy January 17, 2016. REUTERS/Alessandro Bianchi

Pope Francis listens to a member of the Jewish community during his visit at Rome's Great Synagogue, Italy January 17, 2016. REUTERS/Alessandro Bianchi

Pope Francis arrives at Rome's Great Synagogue, Italy January 17, 2016. REUTERS/Alessandro Bianchi