Sunday Breakfast Menu, April 21

Stephen Crowley/The New York Times

With one suspect dead and the other in custody in the wake of the Boston Marathon bombings, the Sunday shows will turn to discussions of what happens next in the story that transfixed the nation last week.

Representative Michael McCaul of Texas, chairman of the Homeland Security Committee, will appear on CNN’s “State of the Union” and CBS’s “Face the Nation” to offer insight into the national security implications of the bombings.

Also on CNN will be Senator Lindsey Graham, Republican of South Carolina and a member of the Armed Services Committee, who has called on the Obama administration to treat the surviving suspect as an enemy combatant. Senator Charles E. Schumer of New York, the No. 3 Democrat and a member of the Judiciary Committee, and Senator William Cowan, Democrat of Massachusetts, will also discuss the bombings.

Tim Roemer, former Indiana congressman; Alberto R. Gonzales, former attorney general; and Candice DeLong, a former F.B.I. profiler, will also appear on CNN.

Joining Mr. McCaul on CBS will be Senator Tom Coburn of Oklahoma, ranking Republican on the Homeland Security Committee; Rudolph W. Giuliani, former New York City mayor; and Tom Ridge, former secretary of homeland security.

In the wake of the failure of several gun control measures on Wednesday, the program will also feature a conversation with relatives of the victims of the school shooting in Newtown, Conn.

Senator Dianne Feinstein of California, chairwoman of the Intelligence Committee, and Representative Peter T. King of New York, chairman of a homeland security subcommittee on counterterrorism, will join “Fox News Sunday.”

Mr. King will also appear on Bloomberg’s “Capitol Gains” at noon Eastern to talk about Boston and the ricin scare in Washington last week. In addition, Alan K. Simpson and Erskine B. Bowles, co-chairmen of President Obama’s bipartisan fiscal commission in 2010, will share the details of their new deficit reduction proposal.

More analysis of the aftermath of last week’s bombings and the implications for national security will be available on NBC’s “Meet the Press,” with guests including Representative Mike Rogers of Michigan, chairman of the Intelligence Committee and a former F.B.I. agent; Michael E. Leiter, former head of the National Counterterrorism Center; Michael Chertoff, former secretary of homeland security; and Senator Richard J. Durbin of Illinois, the No. 2 Democrat.

Mr. Durbin also appeared on Bloomberg’s “Political Capital” on Friday. Repeats of the program air throughout the weekend.

In addition to CNN, Mr. Schumer is on Univision’s “Al Punto” at 10 a.m. Eastern and Telemundo’s “Enfoque” at noon Eastern on Sunday. A member of the so-called Gang of Eight, he will discuss the group’s proposal to overhaul immigration. A fellow member of the group, Senator Robert Menendez, Democrat of New Jersey, will join him on Telemundo, which will also offer coverage of the tragedy and subsequent manhunt in Boston.

Also on Univision is Representative Loretta Sanchez, Democrat of California and a member of the Homeland Security Committee, who will talk about Boston. And Michael B. Oren, Israel’s ambassador to the United States, will weigh in on relations with Israel.

C-Span’s “Newsmakers” has Representative Luis V. Gutierrez, Democrat of Illinois and a member of the bipartisan House group working on overhauling immigration. 

And the conversation turns to Boston, gun violence and education reform on TV One’s “Washington Watch” at 11 a.m. Eastern, with Representative Eddie Bernice Johnson, Democrat of Texas, and Michelle A. Rhee, former schools chancellor in Washington and founder of Students First.