BOB SCHIEFFER, "FACE THE NATION": Do either of you at this point think there's a chance that we would have to put U.S. troops in there or that we would want to? SEN. CLAIRE MCCASKILL (D-MISSOURI): I don't think you want to ever rule it out because I think this is, kind of, as -- as Saxby said, this thing has really deteriorated, and it's not rea

GEORGE STEPHANOPOULOS: That is going to be the question going forward? Also a lot of questions about the president's leadership as he pushes all of these as well, especially after the failure, during the bombings of the background checks. It's created a whole bunch of comparisons, especially in the "New York Times" I noticed. The president, they

Reps. Peter King and Keith Ellison address recent threats made against the United States and the administration’s handling of such incidents. DAVID GREGORY: Well, let's talk about the surveillance within the Muslim community. I mean, that's partly what you were talking about this week, Congressman King. You said this to The Nationa

Cenk Uygur, Michael Medved, Jane Hall & Howard Kurtz discuss how coverage of the Boston attack has shifted this week.

CHUCK TODD: Yes, in the White House, in this respect: you don't draw-- I mean, they meant it. They do mean it, on the chemical weapons, but saying it creates this political conversation. They didn't want to go public last week, that they had this early evidence yet. They weren't ready. And yet, they knew Congress was going to get this briefing and

BRIT HUME: This is absolutely what I would have expected from Barbara Bush. She suffered terribly when the slings and arrows were being aimed first at her husband, then at her son, and then to whatever extent it was to her other son who was -- and I think she's fed up and had long had enough of her men being on the firing line. But I think in terms

WALLACE: But, Senator, respectfully, we knew all that beforehand and your colleagues didn't vote for it? MANCHIN: Well, I think -- Chris, I think there were some confusion. The first bill that came out basically was dropped, the Chuck Schumer bill, which was all inclusive. Chuck, we talked to Chuck and he backed off that, and we worked on what w

CHRIS WALLACE, MODERATOR OF "FOX NEWS SUNDAY": Let's turn to the continuing investigation in Boston. The FBI now says the toy remote-controllers were used, and I think we have a picture of the components of the bomb, toy remote controllers were used to detonate the bombs, more sophisticated than what's in that online Al Qaeda-linked magazine. Co

Brit Hume, Amy Walter, Bill Kristol and Charles Lane discuss the puzzling situations urrounding the sequester-mandated FAA furloughs.

A roundtable of journalists and pundits discusses the conflicts in Syria and ongoing efforts being made on Capitol Hill. Sen. Amy Klobuchar (D-MN), Rep. Joaquin Castro (D-TX), GOP strategist Mike Murphy, NBC’s Chuck Todd, and former counselor to President Bush Karen Hughes discuss.

PANEL 1 (Syria, Boston bombings): Rep. Mike Rogers, Rep. Dutch Ruppersberger, Rep. Jan Schakowsky, Jeffrey Goldberg, Martha Raddatz. PANEL 2 (FAA Furlough, Bush Library, Obama's agenda): George Will, Donna Brazile, Matthew Dowd, Newt Gingrich, and Antonio Villaraigosa.

David Gergen, Peggy Noonan, and CBS News' Clarissa Ward, John Dickerson, and Norah O'Donnell discuss the evidence of chemical weapons use in Syria, and what that might mean for the U.S. response to the ongoing conflict.

Conan O'Brien announces the imaginary cast of a movie about D.C. power players at the White House Correspondents' Dinner.