After revelations by the former National Security Agency contractor Edward J. Snowden in 2013 that the government both cozied up to(讨好) certain tech companies and hacked into others to gain access to private data on an enormous scale, tech giants began to recognize the United States government as a hostile actor.
在2013年前国家安全局承包商爱德华·J·斯诺登揭露政府既讨好某些科技公司又入侵其他公司以获取大规模私人数据之后,科技巨头开始将美国政府视为敌对行为者。
由"After"引导的时间状语从句,修饰主句"tech giants began..."。从句主干是"After revelations...in 2013",表示"在2013年斯诺登曝光之后"这一时间点。该从句内部还嵌套了同位语从句"that the government both cozied up to..."解释"revelations"的具体内容。