Purim: Who Was That Masked Man?

HEBRON, WEST BANK - FEBRUARY 3: (Israel out) Israelis take part in a parade celebrating the Jewish holiday of Purim on Februa
HEBRON, WEST BANK - FEBRUARY 3: (Israel out) Israelis take part in a parade celebrating the Jewish holiday of Purim on February 28, 2010 in Hebron in the occupied West Bank. Purim celebrates the miraculous salvation of the Jews from a genocidal plot in ancient Persia. (Photo by Uriel Sinai/Getty Images)

Think that Yom Kippur is the holiest day on the Jewish calendar? Guess again...