| There's a classic ethical puzzle called the trolley problem: A tram is headed toward a junction. If it stays on course, it will kill five people tied to the track. By flipping a switch, a bystander can divert it to a spur line where it would claim only one victim. What to do about this dilemma? Pragmatists might push the lever, reducing the toll, even if that turns them into active participants in another human being's death. Moralists say it's better to do nothing and remain innocent, even if that makes them observers to a larger disaster. Europe has spent the past week tying itself up in knots over a variation on the trolley problem. Is it acceptable to push ahead with the use of AstraZeneca's coronavirus shot despite a remote but unproven — and possibly unscientific — chance of dangerous side effects? Or is it better to avoid any possibility of causing harm, even if that turns us into passive witnesses to the Covid deaths of many others who can't get vaccinated?  A health worker prepares a dose of the AstraZeneca vaccine. Photographer: Alessandra Tarantino/AP The U.K. is leading the pragmatist camp, while the European Union spent the past week dithering before reluctantly pulling the switch. The bloc's drugs regulator on Thursday cleared the AstraZeneca vaccine for a second time. The new endorsement followed the suspension of shots over concerns about a possible link to blood clots, a tiny handful of them fatal. Many European countries reversed course and authorized the shot anew, though some maintained restrictions. Health authorities in the U.K. and the EU alike have said there's no evidence the vaccine caused the clots, and Astra says there's a higher incidence in the general public than among the millions of people who've received shots. Yet the reports of possible side effects have exposed philosophical differences over vaccination between Britain and the Continent and heightened tensions over vaccine supply shortages. The two tracks they're on look like this: The U.K. has vaccinated around half of all adults, and its virus deaths have plunged to the lowest levels since October. The EU is lagging way behind on immunizations, and it's bracing for a third wave of contagion.—Eric Pfanner | 
↠〖*HDvideo~〗 2020 Skyggen i mit øje PelÃcula Completa En LÃnea released 2020. story: Skyggen i mit øje PelÃcula Completa En LÃnea. ↞◬∺Skyg...
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