Who was J. Robert Oppenheimer? What to know about atomic bomb physicist's life, career, death

The hall at St. Vladimir’s Ukrainian Orthodox Church in Calgary is packed. Three gigantic, artistically painted wooden Easter eggs dominate the stage. Heavily accented voices rise and fall amid the chatter as attendees nibble on poppyseed cake and other Ukrainian delicacies. No one wears the bright blue-and-yellow of the war’s early days, but embroidered vyshyvanky peek from under sweaters and jackets. These are the faithful still committed to Ukraine’s cause. They came to hear Michael Bociurkiw — a Canadian journalist of Ukrainian heritage now based in Odesa — deliver a sobering...