LONDON — With the Jewish holiday of Sukkot approaching on Monday night, Rabbi Ben Kurzer wishes he did not need high security for his congregants to say their prayers after two Jewish worshipers were killed during last week’s terror attack targeting a synagogue in Manchester. “Sadly, for a long time now, we have been slowly upping our security more and more,” Kurzer said, as the light streamed in from the stained glass windows in his London synagogue. “We would love to live in a country where we didn’t have to do that quite as much.” Last Thursday, a British man...