美国情报机构发现，普京并未直接下令在二月份杀害阿列克谢·纳瓦尔尼。这一发现并不能免除俄罗斯领导人的最终责任，但却加深了这位异见人士在北极古拉格集中营死亡的谜团。Putin Didn't Directly Order Alexei Navalny's February Death, U.S. Spy Agencies Find The finding, which doesn't absolve the Russian leader of ultimate responsibility, deepens the mystery surrounding the dissident's death at an Arctic gulag.