One of them, developed by J. Edgar Hoover was wiretapping.

由 J. Edgar Hoover 开发的其中一项技术是窃听。

So, wiretapping is a way to listen secretly to a person's phone calls.

因此，窃听是一种偷听某人电话的方式。

A wily man in the wire agency pulled wire by wiretapping.

一个诡计多端的在新闻电讯社的人通过搭线窃听来幕后操纵。

Nowadays, there are laws saying that you – the government cannot tap your phone, cannot use wiretapping unless the use is approved, typically by a judge, a member of the court system.

现在，有法律规定你——政府不能窃听你的电话，不能使用窃听， 除非批准使用， 通常是法官， 法院系统的成员。