In the 1950s, during the sad period known as the McCarthy era, one’s political beliefs again served as a rationale for government monitoring. Individual corporations and entire industries were coerced by government leaders into informing on individuals and barring their ability to earn a living.
I was among those blacklisted for my political beliefs. My crime? I had signed petitions. Lots of them. I had signed on in opposition to Jim Crow laws and poll taxes and in favor of rent control and pacifism. Because the petitions were thought to be Communist-inspired, I lost my ability to work in television and radio after refusing to say that I had been “duped” into signing my name to these causes.
[…]
In 1978, with broad public support, Congress passed the Foreign Intelligence Surveillance Act, which placed national security investigations, including wiretapping, under a system of warrants approved by a special court. The law was not perfect, but as a result of its enactment and a series of subsequent federal laws, a generation of Americans has come to adulthood protected by a legal structure and a social compact making clear that government will not engage in unbridled, dragnet seizure of electronic communications.
The Bush administration, however, tore apart that carefully devised legal structure and social compact.
The Wiretap This Time (Studs Terkel in the New York Times)