Ukraine’s army has recently pushed back Russian forces at some points along the roughly 1,250-kilometer (750-mile) front line, according to the Institute for the Study of War.
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В России допустили «второй Чернобыль» в Иране22:31
Counterfactuals Causal inference is easier when the effects are large and sudden. The COVID-19 pandemic and accompanying policy measures caused economic disruption so stark that sophisticated statistical approaches were unnecessary for many questions. For example, unemployment jumped sharply in the early weeks of the pandemic, leaving little room for alternative explanations.
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