Open this photo in gallery: Ultra-Orthodox Jewish men and children burn leavened items in final preparation for the Passover holiday in the ultra-Orthodox Jewish town of Bnei Brak, near Tel Aviv, Israel, on April 22.Oded Balilty/The Associated Press Some Jewish Canadians say they have complex emotions and feel more solemn than usual this Passover because of the war in Gaza and a rise in antisemitism in Canada. The major Jewish holiday lasts seven or eight days each year and commemorates the exodus of ancient Israelites from slavery in Egypt, as recounted in the Bible. The Centre for Israel and Jewish...