OTTAWA — Speaker Greg Fergus is proposing that certain guests who are recognized in the House of Commons should be screened for their reputations as well as whether they pose a physical threat. Clerk Eric Janse shared the suggestion today as a committee of MPs discusses whether changes are needed after Parliament unwittingly applauded a Nazi veteran last year. Yaroslav Hunka, who fought the Soviet Union with a Ukrainian voluntary unit created by the Nazis, attended a September address by Ukraine's president. The then-Speaker, Anthony Rota, took responsibility for inviting and recognizing the 98-year-old veteran and stepped down. Janse says...