VOA慢速英语:US Court: NSA Phone Record Gathering Is Illegal

metadata – n. a set of data that describes and gives information about other data.

referendum – n. an event in which the people of a county, state, etc., vote for or against a law that deals with a specific issue; a public vote on a particular issue

consequential – adj. important

complaint – n. an official charge saying that someone has done something wrong

escort – v.  to go with (someone or something) to give protection or guidance