McCain said he was "proud" of convicted felon and domestic terrorist, G. Gordon Liddy

The mainstream media has been largely silent on John McCain's longtime and continuing friendship with convicted felon, G. Gordon Liddy.

It took late night comedian David Letterman to finally broach the subject. But while Letterman exposed Liddy's political activities on McCain's behalf, he didn't go into the extraordinarily sordid details of Liddy's plans for the assassination and kidnapping of journalists and political activists and his repeated advice -- as recently as 1995 -- to talk radio show listeners to shoot US Bureau of Alcohol, Tobacco, and Firearms agents "in the head" because they wear bullet proof vests.

It was only three years later, in 1998 that Liddy hosted a fundraiser for McCain's senate campaign in his home.

For his part, McCain actually defends the unrepentant domestic terrorist and would-be assassin saying only that Liddy has "served his debt to society" for the Watergate break-in -- a crime during which Liddy has written that he was prepared to kill anyone who got in the way of the break-in at Democratic political offices, a crime committed at the behest of disgraced Republican president Richard Nixon.

Respected veteran journalist Carl Bernstein, co-author of the definitive book on the Watergate break-in, All the President's Men, wrote in the Huffington Post:

In 1998, Liddy gave a fundraiser in his Scottsdale, Arizona home for McCain's senatorial re-election campaign -- the two posed for photographs together; and as recently as May, 2007, as a presidential candidate, McCain was a guest on Liddy's syndicated radio show. Inexplicably, McCain heaped praise on his host's values. During the segment, McCain said he was "proud" of Liddy, and praised Liddy's "adherence to the principles and philosophies that keep our nation great." From the program:

LIDDY: Your experience in the Hanoi Hilton is remarkable. I mean, I put in five years in a prison [for masterminding the Watergate burglary, and associated crimes], but it was here in the United States, and they didn't torture - the only torture that I had was being forced to listen to rap music from time to time.

McCAIN: Well, you know, I'm proud of you. I'm proud of your family. I'm proud to know your son, Tom, who's a great and wonderful guy. And it's always a pleasure for me to come on your program, Gordon. And congratulations on your continued success and adherence to the principles and philosophies that keep our nation great.

Which of Liddy's "principles and philosophies" was McCain referring to? Liddy's advocacy of break-ins? Firebombings? Assassinations? Kidnappings? Taking target practice with figures nicknamed Bill and Hillary?

During the same period that Bill Ayers was a member of the Weather Underground, Gordon Liddy was making plans to firebomb a Washington think tank, assassinate a prominent journalist, undertake the Watergate burglary, break into the office of Daniel Ellsberg's psychiatrist, and kidnap anti-war protesters at the 1972 Republican convention.

Re: Liddy's "continued success and adherence to the principles and philosophies that keep our nation great:" Did McCain mean to include Liddy's instructions to listeners of his radio show in 1994 (around the time Ayres and Obama were on a board together discussing education programs and other plots) on how to shoot Bureau of Alcohol, Tobacco, and Firearms agents (aim for the head)?

If ATF agents attempt to curtail a citizen's gun ownership, Liddy counseled, "Well, if the Bureau of Alcohol Tobacco and Firearms comes to disarm you and they are bearing arms, resist them with arms. Go for a head shot; they're going to be wearing bulletproof vests."

More recently, Liddy explained making the Clintons objects of shooting practice: "I did relate that on the 4th of July of last year, when I and my family and some friends were out firing away at a properly-constructed rifle range and we ran out of targets, and so we - I drew some stick figure targets and I thought we ought to give them names. So I named them Bill and Hillary, thought it might improve my aim. It didn't. My aim is good anyway. Now, having said that, I accept no responsibility for somebody shooting up the White House."

The Liddy-McCain symbiosis has been mentioned in a number of posts on the Internet - mostly by bloggers and sites identified with The Left. But the documentation of their interaction (Liddy has also contributed financially to McCain's presidential campaign) is not a matter of Left or Right: It is astonishing that, given the prominence of the Ayers matter accorded by virtually every "mainstream" news outlet in America, there has been virtually nothing on the subject in the major newspapers and broadcast networks. This is a real journalistic failure and abrogation of responsibility.