The mainstream media's silence on the Benghazi disaster reached deafening levels on Sunday, as hosts of four out of the five major news shows--with the exception of Fox News Sunday--failed to raise the issue. Only Bob Schieffer of CBS gave it serious consideration, and only after it was raised by Sen. John McCain.

When the Benghazi issue did surface, other than on Fox, it was invariably brought up by Republican guests, and then deflected by the hosts, who largely ignored new stories this week that implicated the White House in the decision not to intervene to save the life of U.S. Ambassador Chris Stevens and other American staff.

Here is how the Sunday shows covered the issue:

NBC: Meet the Press with David Gregory

The Benghazi issue was not raised at all, save by panelist Carly Fiorina, who was interrupted by Gregory. He promised, "We'll get to that a little bit later," but did not return to the issue before the show's end. (The show was interrupted in some markets, in the final minute, with breaking news about Hurricane Sandy.)

ABC: This Week with George Stephanopoulos

The Benghazi issue was raised by Newt Gingrich, in response to a question about the Romney campaign's prospects in Ohio. Stephanopoulos failed to ask a follow-up and steered the conversation back to polls.