@BillRM,
You seem to have selective reading comprehension skills. I said, we didn't know the methods nor the extent. However, we knew in general what NSA was up to and a majority of the voting public approved. The Snowden revelation just made it suddenly unpopular.
The reason the secret court which has been around since after the Nixon scandal, knew about the few times NSA exceeded their authority is because of an internal review from NSA.
As far as the CIA spying on congress stuff, I hadn't kept up with that story. If it is true, then shame on them. However, no reason to throw the baby out with the bath water.
From the link I left before.
Quote:But an overwhelming majority of Americans supported the USA Patriot Act — sections of which were later used to justify NSA programs — in 2002 and 2003, and even after "heightened public concern about government intrusions" in 2005, a Washington Post poll found that six in 10 Americans favored extending the law.
After that poll, in late 2005, The New York Times first exposed the NSA's warrantless spying program. In 2006, the public knew about the "secret room" marked 641A in one of AT&T's communications hubs, which had a traffic splitter and scanner so that any and all "traffic that passed through AT&T's own network could be scanned" by the NSA, as Ars Technica put it at the time.
Still, the USA Patriot Act, and modified iterations of it, were extended by Congress several more times over the coming years, under both administrations. Even in 2011, a Pew poll found that more Americans (42 percent) thought the government's spying powers were a "necessary tool" in the War on Terror, while only 32 percent said it posed a "threat to civil liberties."
While public knowledge about government surveillance then certainly wasn't as rich and thorough as it has become in the past year, we knew that warrantless domestic spying was occurring for more than six years — through two different presidential elections and five Congressional elections — but public opinion only experienced a major shift against U.S. government surveillance powers after the Snowden revelations began to flow.