A Palestinian man shows a skull cap, also known as kippot or yarmulke for Jewish worshippers, at a sewing factory in Gaza City March 11, 2017. Picture taken March 11, 2017. REUTERS/Ibraheem Abu Mustafa 

A Palestinian man fits a sample of a skull cap, also known as kippot or yarmulke for Jewish worshippers, at a sewing factory in Gaza City March 11, 2017. Picture taken March 11, 2017. REUTERS/Ibraheem Abu Mustafa 

A dog dressed in a costume is seen in a street during festivities for the Jewish holiday of Purim in Tel Aviv, Israel March 10, 2017. REUTERS/Baz Ratner 

A Jewish boy looks at clothes for sale the Breitbart booth at the Conservative Political Action Conference (CPAC) in National Harbor, Maryland, U.S., February 23, 2017. REUTERS/Joshua Roberts 

A model prepares backstage during an event dubbed, "Modest Fashion Day", the first of its kind in Israel, whereby designers showed off their clothing creations aimed at Orthodox Jewish women who adhere to strict dress codes, in Jerusalem February 23, 2017. REUTERS/Ronen Zvulun 

A model prepares backstage during an event dubbed, "Modest Fashion Day", the first of its kind in Israel, whereby designers showed off their clothing creations aimed at Orthodox Jewish women who adhere to strict dress codes, in Jerusalem February 23, 2017. REUTERS/Ronen Zvulun 

Models prepare backstage during an event dubbed, "Modest Fashion Day", the first of its kind in Israel, whereby designers showed off their clothing creations aimed at Orthodox Jewish women who adhere to strict dress codes, in Jerusalem February 23, 2017. REUTERS/Ronen Zvulun 

Models prepare backstage during an event dubbed, "Modest Fashion Day", the first of its kind in Israel, whereby designers showed off their clothing creations aimed at Orthodox Jewish women who adhere to strict dress codes, in Jerusalem February 23, 2017. REUTERS/Ronen Zvulun 

A model prepares backstage during an event dubbed, "Modest Fashion Day", the first of its kind in Israel, whereby designers showed off their clothing creations aimed at Orthodox Jewish women who adhere to strict dress codes, in Jerusalem February 23, 2017. REUTERS/Ronen Zvulun 

Models prepare backstage during an event dubbed, "Modest Fashion Day", the first of its kind in Israel, whereby designers showed off their clothing creations aimed at Orthodox Jewish women who adhere to strict dress codes, in Jerusalem February 23, 2017. REUTERS/Ronen Zvulun 

A model prepares backstage during an event dubbed, "Modest Fashion Day", the first of its kind in Israel, whereby designers showed off their clothing creations aimed at Orthodox Jewish women who adhere to strict dress codes, in Jerusalem February 23, 2017. REUTERS/Ronen Zvulun 

A model walks down the runway during an event dubbed, "Modest Fashion Day", the first of its kind in Israel, whereby designers showed off their clothing creations aimed at Orthodox Jewish women who adhere to strict dress codes, in Jerusalem February 23, 2017. REUTERS/Ronen Zvulun 

A model walks down the runway during an event dubbed, "Modest Fashion Day", the first of its kind in Israel, whereby designers showed off their clothing creations aimed at Orthodox Jewish women who adhere to strict dress codes, in Jerusalem February 23, 2017. REUTERS/Ronen Zvulun 

Models prepare backstage during an event dubbed, "Modest Fashion Day", the first of its kind in Israel, whereby designers showed off their clothing creations aimed at Orthodox Jewish women who adhere to strict dress codes, in Jerusalem February 23, 2017. REUTERS/Ronen Zvulun 

Models stand on the runway during an event dubbed, "Modest Fashion Day", the first of its kind in Israel, whereby designers showed off their clothing creations aimed at Orthodox Jewish women who adhere to strict dress codes, in Jerusalem February 23, 2017. REUTERS/Ronen Zvulun 

A model walks down the runway during an event dubbed, "Modest Fashion Day", the first of its kind in Israel, whereby designers showed off their clothing creations aimed at Orthodox Jewish women who adhere to strict dress codes, in Jerusalem February 23, 2017. REUTERS/Ronen Zvulun TPX IMAGES OF THE DAY 

A members of the Prizma Ensemble wearing full solid-coloured bodysuits takes part in a festival for the Jewish holiday of Hanukkah on the light train in Jerusalem December 26, 2016. REUTERS/Amir Cohen TPX IMAGES OF THE DAY 

A Jewish man covered in a prayer shawl, prays in the Jewish settler outpost of Amona in the West Bank December 18, 2016. REUTERS/Baz Ratner TPX IMAGES OF THE DAY 

An Israeli man wearing a Jewish prayer shawl, prays near a home in the early morning, in the Jewish settler outpost of Amona in the West Bank December 15, 2016. REUTERS/Ronen Zvulun TPX IMAGES OF THE DAY 

Jewish worshippers cover themselves in prayer shawls as they recite the priestly blessing at the Western Wall in Jerusalem's Old City during the Jewish holiday of Sukkot October 19, 2016. REUTERS/Baz Ratner 

Jewish worshippers cover themselves in prayer shawls as they recite the priestly blessing at the Western Wall in Jerusalem's Old City during the Jewish holiday of Sukkot October 19, 2016. REUTERS/Baz Ratner 

Jewish worshippers cover themselves in prayer shawls as they recite the priestly blessing at the Western Wall in Jerusalem's Old City during the Jewish holiday of Sukkot October 19, 2016. REUTERS/Baz Ratner 

Jewish worshippers cover themselves in prayer shawls as they recite the priestly blessing at the Western Wall in Jerusalem's Old City during the Jewish holiday of Sukkot October 19, 2016. REUTERS/Baz Ratner 

Jewish worshippers cover themselves in prayer shawls as they recite the priestly blessing at the Western Wall in Jerusalem's Old City during the Jewish holiday of Sukkot October 19, 2016. REUTERS/Baz Ratner 

A Jewish worshipper uses his mobile phone to record worshippers who are covered in prayer shawls as they recite the priestly blessing at the Western Wall in Jerusalem's Old City during the Jewish holiday of Sukkot October 19, 2016. REUTERS/Baz Ratner TPX IMAGES OF THE DAY

A young Jewish worshipper covers himself in a prayer shawl as he takes part in the priestly blessing at the Western Wall in Jerusalem's Old City during the Jewish holiday of Sukkot October 19, 2016. REUTERS/Baz Ratner 

Female members decorate the great-grandson of the spiritual leader of the ultra-Orthodox Jewish Hassidic Lelover dynasty with jewellery at the beginning of a religious ceremony, called "Pidyon Ha'ben", or the "redemption of the first-born son", originating from the biblical story of Moses on Mount Sinai, whereby the father of the baby makes a symbolic offering, including jewellery and sweets, to a Kohen or Jewish priest, in Jerusalem's neighbourhood of Mea Shearim September 1, 2016. REUTERS/Ronen Zvulun 

Masked Palestinians gather during clashes with Israeli police during the holy month of Ramadan near The Dome of the Rock (seen in background) on the compound known to Muslims as Noble Sanctuary and to Jews as Temple Mount in Jerusalem's Old City June 28, 2016. An Israeli police spokesman said on Tuesday that the compound would be closed to visitors, including Jewish visitors, for three days in response to clashes, in which masked Palestinians threw stones at Israeli policemen and some 16 suspects were detained by the police. REUTERS/Ammar Awad 

Masked Palestinians gesture during clashes with Israeli police during the holy month of Ramadan near Al-Aqsa mosque (R) on the compound known to Muslims as Noble Sanctuary and to Jews as Temple Mount in Jerusalem's Old City June 28, 2016. An Israeli police spokesman said on Tuesday that the compound would be closed to visitors, including Jewish visitors, for three days in response to clashes, in which masked Palestinians threw stones at Israeli policemen and some 16 suspects were detained by the police. REUTERS/Ammar Awad 

Masked Palestinians read the Koran before clashes with Israeli police erupted during the holy month of Ramadan near the Dome of the Rock (seen in background) on the compound known to Muslims as Noble Sanctuary and to Jews as Temple Mount in Jerusalem's Old City June 28, 2016. An Israeli police spokesman said on Tuesday that the compound would be closed to visitors, including Jewish visitors, for three days in response to clashes, in which masked Palestinians threw stones at Israeli policemen and some 16 suspects were detained by the police. REUTERS/Ammar Awad 

Masked Palestinians hold stones as they gesture during clashes with Israeli police during the holy month of Ramadan near Al-Aqsa mosque (seen in background) on the compound known to Muslims as Noble Sanctuary and to Jews as Temple Mount in Jerusalem's Old City June 28, 2016. An Israeli police spokesman said on Tuesday that the compound would be closed to visitors, including Jewish visitors, for three days in response to clashes, in which masked Palestinians threw stones at Israeli policemen and some 16 suspects were detained by the police. REUTERS/Ammar Awad 

Masked Palestinians rest in wheelchairs before clashes with Israeli police erupted during the holy month of Ramadan on the compound known to Muslims as Noble Sanctuary and to Jews as Temple Mount in Jerusalem's Old City June 28, 2016. An Israeli police spokesman said on Tuesday that the compound would be closed to visitors, including Jewish visitors, for three days in response to clashes, in which masked Palestinians threw stones at Israeli policemen and some 16 suspects were detained by the police. REUTERS/Ammar Awad 

Masked Palestinians hold stones during clashes with Israeli police during the holy month of Ramadan on the compound known to Muslims as Noble Sanctuary and to Jews as Temple Mount in Jerusalem's Old City June 28, 2016. An Israeli police spokesman said on Tuesday that the compound would be closed to visitors, including Jewish visitors, for three days in response to clashes, in which masked Palestinians threw stones at Israeli policemen and some 16 suspects were detained by the police. REUTERS/Ammar Awad 

A masked Palestinian rests inside Al-Aqsa mosque during clashes with Israeli police during the holy month of Ramadan on the compound known to Muslims as Noble Sanctuary and to Jews as Temple Mount in Jerusalem's Old City June 28, 2016. An Israeli police spokesman said on Tuesday that the compound would be closed to visitors, including Jewish visitors, for three days in response to clashes, in which masked Palestinians threw stones at Israeli policemen and some 16 suspects were detained by the police. REUTERS/Ammar Awad TPX IMAGES OF THE DAY

Ultra-Orthodox Jews carry a chair for rabbi Aharon Rata in preparation for the traditional harvesting of wheat in the Ultra-Orthodox moshav of Komemiyut May 3, 2016. The harvested wheat will later be used to make the traditional unleavened bread eaten during the Jewish holiday of Passover. REUTERS/Amir Cohen

Holocaust survivors wear Jewish prayer shawls during a group Bar Mitzvah ceremony for Holocaust survivors at the Western Wall, Judaism's holiest prayer site, in Jerusalem's Old City May 2, 2016. On Monday some 30 male survivors of the genocide celebrated the traditional Jewish coming of age ceremony, normally marked at the age of 13. REUTERS/Ronen Zvulun

A man places tefillin, leather straps and boxes containing sacred parchments, around the arm of a Holocaust survivor during a group Bar Mitzvah ceremony for Holocaust survivors at the Western Wall, Judaism's holiest prayer site, in Jerusalem's Old City May 2, 2016. On Monday some 30 male survivors of the genocide celebrated the traditional Jewish coming of age ceremony, normally marked at the age of 13. REUTERS/Ronen Zvulun

Gal Moshe, a Holocaust survivor, kisses a Jewish prayer shawl as he reads from a Torah scroll during a group Bar Mitzvah ceremony for Holocaust survivors at the Western Wall, Judaism's holiest prayer site, in Jerusalem's Old City May 2, 2016. On Monday some 30 male survivors of the genocide celebrated the traditional Jewish coming of age ceremony, normally marked at the age of 13. REUTERS/Ronen Zvulun

Ephraim Zevoltober, a Holocaust survivor, kisses a Jewish prayer shawl during a group Bar Mitzvah ceremony for Holocaust survivors at the Western Wall, Judaism's holiest prayer site, in Jerusalem's Old City May 2, 2016. On Monday some 30 male survivors of the genocide celebrated the traditional Jewish coming of age ceremony, normally marked at the age of 13. REUTERS/Ronen Zvulun TPX IMAGES OF THE DAY

Israeli sap surfers some dressed in costumes take part in an event for the Jewish holiday of Purim in the of the Mediterranean sea in Tel Aviv, March 24, 2016. Purim is a celebration of the Jews' salvation from genocide in ancient Persia, as recounted in the Book of Esther. REUTERS/Baz Ratner TPX IMAGES OF THE DAY

Israeli sap surfers dressed in costumes take part in an event for the Jewish holiday of Purim in the of the Mediterranean sea in Tel Aviv, March 24, 2016. Purim is a celebration of the Jews' salvation from genocide in ancient Persia, as recounted in the Book of Esther. REUTERS/Baz Ratner 

A boy wearing a costume watches a parade marking the Jewish holiday of Purim in Petah Tikva near Tel Aviv, Israel March 24, 2016. Purim is a celebration of the Jews' salvation from genocide in ancient Persia, as recounted in the Book of Esther. REUTERS/Baz Ratner 

Children wearing costumes watch a parade marking the Jewish holiday of Purim in Petah Tikva near Tel Aviv, Israel March 24, 2016. Purim is a celebration of the Jews' salvation from genocide in ancient Persia, as recounted in the Book of Esther. REUTERS/Baz Ratner 

Israelis wearing matching costumes take part in a parade marking the Jewish holiday of Purim in Petah Tikva near Tel Aviv, Israel March 24, 2016. Purim is a celebration of the Jews' salvation from genocide in ancient Persia, as recounted in the Book of Esther. REUTERS/Baz Ratner 

Palestinian boy Ahmed Dawabsha, 5, who suffered severe burns in an arson attack by suspected Jewish attackers on his family home last July and in which his younger brother, Ali, and his parents both died, is helped to put on new shoes by relatives after returning from Spain where he met Real Madrid players, at his grandfather's house in the West Bank village of Duma near Nablus March 22, 2016. REUTERS/Abed Omar Qusini

Twins wear costumes as they sit in a buggy during events marking the upcoming Jewish holiday of Purim at the Bialik Rogozin school in Tel Aviv, Israel March 22, 2016. At Bialik Rogozin, children of migrant workers and refugees are educated alongside native Israelis. Purim is a celebration of the Jews' salvation from genocide in ancient Persia, as recounted in the Book of Esther. REUTERS/Baz Ratner 

Ultra-Orthodox Jewish men attend the wedding ceremony of the grandson of Rabbi Yosef Dov Moshe Halberstam, religious leader of the Sanz Hasidic dynasty and the granddaughter of the religious leader of Toldos Avraham Yitzchak Hasidic dynasty, in Netanya, Israel March 15, 2016. Picture taken March 15, 2016. REUTERS/Baz Ratner 

An ultra-Orthodox Jewish bride arrives to her wedding ceremony on a carriage in Netanya, Israel March 15, 2016. Thousands took part in the wedding of the grandson of Rabbi Yosef Dov Moshe Halberstam, religious leader of the Sanz Hasidic dynasty and the granddaughter of the religious leader of Toldos Avraham Yitzchak Hasidic dynasty, in Netanya on Tuesday night. Picture taken March 15, 2016. REUTERS/Baz Ratner 

Ultra-Orthodox Jewish men take part in the wedding ceremony of the grandson of Rabbi Yosef Dov Moshe Halberstam, religious leader of the Sanz Hasidic dynasty and the granddaughter of the religious leader of Toldos Avraham Yitzchak Hasidic dynasty, in Netanya, Israel, March 15, 2016. Picture taken March 15, 2016. REUTERS/Baz Ratner 

An ultra-Orthodox Jewish bride takes part in the "mitzva tantz", the custom in which relatives dance in front of the bride after her wedding ceremony, in Netanya, Israel, late March 15, 2016. Thousands took part in the wedding of the grandson of Rabbi Yosef Dov Moshe Halberstam, religious leader of the Sanz Hasidic dynasty and the granddaughter of the religious leader of Toldos Avraham Yitzchak Hasidic dynasty, in Netanya on Tuesday night. Picture taken March 15, 2016. REUTERS/Baz Ratner 

Ultra-Orthodox Jewish women sit next to the bride as they attend her wedding ceremony, in Netanya, Israel early March 16, 2016. Thousands took part in the wedding of the grandson of Rabbi Yosef Dov Moshe Halberstam, religious leader of the Sanz Hasidic dynasty and the granddaughter of the religious leader of Toldos Avraham Yitzchak Hasidic dynasty, in Netanya on Tuesday night. REUTERS/Baz Ratner 

An ultra-Orthodox Jewish bride takes part in the "mitzva tantz", the custom in which relatives dance in front of the bride after her wedding ceremony, in Netanya, Israel, early March 16, 2016. Thousands took part in the wedding of the grandson of Rabbi Yosef Dov Moshe Halberstam, religious leader of the Sanz Hasidic dynasty and the granddaughter of the religious leader of Toldos Avraham Yitzchak Hasidic dynasty, in Netanya on Tuesday night. REUTERS/Baz Ratner 

An ultra-Orthodox Jewish bride takes part in the "mitzva tantz", the custom in which relatives dance in front of the bride after her wedding ceremony, in Netanya, Israel, early March 16, 2016. Thousands took part in the wedding of the grandson of Rabbi Yosef Dov Moshe Halberstam, religious leader of the Sanz Hasidic dynasty and the granddaughter of the religious leader of Toldos Avraham Yitzchak Hasidic dynasty, in Netanya on Tuesday night. REUTERS/Baz Ratner 

An ultra-Orthodox Jewish man uses binoculars during the wedding ceremony the grandson of Rabbi Yosef Dov Moshe Halberstam, religious leader of the Sanz Hasidic dynasty and the granddaughter of the religious leader of Toldos Avraham Yitzchak Hasidic dynasty, in Netanya, Israel March 15, 2016. Picture taken March 15, 2016. REUTERS/Baz Ratner TPX IMAGES OF THE DAY

An ultra-Orthodox Jewish bride takes part in the "mitzva tantz", the custom in which relatives dance in front of the bride after her wedding ceremony, in Netanya, Israel, late March 15, 2016. Thousands took part in the wedding of the grandson of Rabbi Yosef Dov Moshe Halberstam, religious leader of the Sanz Hasidic dynasty and the granddaughter of the religious leader of Toldos Avraham Yitzchak Hasidic dynasty, in Netanya on Tuesday night. Picture taken March 15, 2016. REUTERS/Baz Ratner 

An ultra-Orthodox Jewish bride takes part in the "mitzva tantz", the custom in which relatives dance in front of the bride after her wedding ceremony, in Netanya, Israel early March 16, 2016. Thousands took part in the wedding of the grandson of Rabbi Yosef Dov Moshe Halberstam, religious leader of the Sanz Hasidic dynasty and the granddaughter of the religious leader of Toldos Avraham Yitzchak Hasidic dynasty, in Netanya on Tuesday night. REUTERS/Baz Ratner 

U.S.-Israeli musicologist David Louis plays a lyre as part of a demonstration of biblical instruments at the Temple Institute in Jerusalem January 25, 2016. Louis is among experts trying to reconstruct the notes to which prayers were chanted at the ancient Jewish temples in the holy city, a liturgical art that skeptics believe is irretrievably lost. REUTERS/Ronen Zvulun TPX IMAGES OF THE DAY

An ultra-Orthodox Jewish boy wears a plastic bag over his hat as it rains during the funeral of Rabbi Yochanan Sofer, the spiritual leader of the Erlau dynasty in Jerusalem, February 22, 2016. Rabbi Yochanan Sofer, a Holocaust survivor, immigrated to Israel in the 1950 from Hungary and later founded the Erlau yeshiva, or Jewish seminary, in Jerusalem. He died in Jerusalem on Monday at the age of 92. REUTERS/Ronen Zvulun

An ultra-Orthodox Jewish man attends the funeral of Rabbi Yochanan Sofer, the spiritual leader of the Erlau dynasty in Jerusalem, February 22, 2016. Rabbi Yochanan Sofer, a Holocaust survivor, immigrated to Israel in the 1950 from Hungary and later founded the Erlau yeshiva, or Jewish seminary, in Jerusalem. He died in Jerusalem on Monday at the age of 92. REUTERS/Ronen Zvulun TPX IMAGES OF THE DAY

An ultra-Orthodox Jewish boy wears a plastic bag over his hat as it rains during the funeral of Rabbi Yochanan Sofer, the spiritual leader of the Erlau dynasty in Jerusalem, February 22, 2016. Rabbi Yochanan Sofer, a Holocaust survivor, immigrated to Israel in the 1950 from Hungary and later founded the Erlau yeshiva, or Jewish seminary, in Jerusalem. He died in Jerusalem on Monday at the age of 92. REUTERS/Ronen Zvulun