Lubavitch students watch a news conference at the Chabad-Lubavitch World Headquarters in Brooklyn, New York November 28, 2008. A Brooklyn-based rabbi and his wife were killed in the siege on a Jewish center in Mumbai as part of the coordinated attacks on India's financial center, their New York-based organization said on Friday. REUTERS/Brendan McDermid (UNITED STATES) 

Ultra orthodox Jewish men pray close to the tomb of Rabbi Nachman of Breslov in the Ukrainian city of Uman September 12, 2007. Thousands of Jewish pilgrims arrive every year on Rosh Hashana, the Jewish new year, to Nachman's tomb in Uman. REUTERS/Konstantin Chernichkin (UKRAINE) 

Jewish worshippers pray at the Western Wall in Jerusalem's Old City July 23, 2007 as they mark Tisha B'Av, which started at sundown on Monday. Tisha B'Av, a day of fasting and lament, is traditionally the date in the Jewish calendar on which the First and Second Temples were destroyed, respectively in the sixth century BC by the Babylonians and the first century AD by the Romans. REUTERS/Ronen Zvulun (JERUSALEM) 

A man reads a prayer book outside the gravesite of the late Lubavitcher Rebbe Rabbi Menachem Mendel Schneerson, as followers and admirers of Schneerson gather at his mausoleum for the 13th anniversary of his death, at the Old Montefiore Cemetery in New York June 18, 2007.
REUTERS/Shannon Stapleton (UNITED STATES) 

A man prays in the graveyard outside the mausoleum of the late Rabbi Menachem Mendel Schneerson, the spiritual leader of the Chabad Lubavitch Hassidim, at the Old Montefiore Cemetery in the Queens section of New York City, June 29, 2006. Thousands of Lubavitcher from around the world came to pray at the site. REUTERS/Mike Segar