On news suppression:
http://www.wanttoknow.info/massmedia#webb
"In the months leading up to the November [2000] balloting, Florida Governor Jeb Bush and his secretary of state, Katherine Harris, ordered local elections supervisors to purge 58,000 voters from registries on the grounds they were felons not entitled to vote in Florida. As it turns out, only a handful of these voters were felons. The voters were [about 54%] African Americans, and most of the others were white and Hispanic Democrats. Three weeks after the election, this extraordinary news ran on page one of the country’s leading paper. Unfortunately, it was in the wrong country: Britain. In the USA, it was not covered.... A group of well-placed sources told my BBC team that before Sept. 11th the US government had turned away evidence of Saudi billionaires funding bin Laden’s network. We got our hands on documents that backed up the story that FBI and CIA investigations had been slowed by the Clinton administration, then killed by Bush Jr.’s. The story made top of the news—in Britain. In the US, one TV reporter picked up the report. He was called, he says, by network chiefs, and told to go no further. He didn’t."
"There is next to no meaningful coverage ever of the CIA in the mainstream media, let alone analysis. The few exceptions prove the rule..... [CIA Director William] Casey called ABC Chairman Leonard H. Goldenson. The call led to three meetings between ABC officials and Stanley Sporkin, CIA general counsel. On November 21, 1984, despite all the documented evidence presented in the program, Peter Jennings reported that ABC could no longer substantiate the charges, and that “We have no reason to doubt the CIA’s denial.” He presented no evidence supporting the CIA’s position. (pp. 131, 132)
That same day, the CIA filed a formal complaint with the FCC, written by Sporkin and signed by [CIA Director] Casey, charging that ABC had “deliberately distorted” the news. Casey asked that ABC be stripped of its TV and radio licenses. This was the first time in the history of the country that a government agency had formally attacked the press. Yet, there was no uproar. (p. 132)
During this time, Capital Cities Communications was maneuvering to buy ABC. [CIA Director] Casey was one of the founders of Cap Cities. Cap Cities bought ABC for $3.5 billion, which was called a “bargain rate” by the trade media. Besides Casey, two other founders of Cap Cities had extensive ties to the intelligence community. Within months, the entire investigative unit [of ABC] was dispersed...."
"There were 50 major media corporations in 1993, and now there are only about half a dozen."
"The president’s press secretary warns the media and all Americans to watch what they say and watch what they do."
"In the year 2000, a Texas man received 16 years in prison for stealing a Snickers candy bar, while four executives at Hoffman-LaRoche were found guilty of conspiring to suppress and eliminate competition in the vitamin industry in what the Justice Department called perhaps the largest criminal antitrust conspiracy in history. The four executives were fined anywhere from $75,000 to $350,000. They received prison terms ranging from three all the way up to four months."
or see http://www.wanttoknow.info/060507newsjournalistsprevented
"The buzz saw is what can rip through you when you try to investigate or expose anything this country’s large institutions—be they corporate or government—want kept under wraps. The system fights back with official lies, disinformation, and stonewalling."

It hasn't been discredited ... except only by your statement based on memory.