BRUSSELS — Buying a packet of cigarettes in Belgium these days can be a harrowing experience. European cartons already carry large health warnings, such as “Smoking Kills” and “Smoking When Pregnant Harms Your Baby,” often framed in black and occupying up to half the surface of the pack. But from May, smokers in this rain-swept country of 10 million people will also been confronted with graphic pictorial warnings on their cigarette packs. The pictures are not for the faint-hearted. One shows a man with a swollen-red tumour protruding from his neck. “Smoking can lead to a slow and painful death,” […]