WASHINGTON - Guest lineups for the Sunday TV news shows:
• ABC's "This Week," 7 a.m., Channel 9 - Coverage of the Boston Marathon bombing investigation.
• CNN's "State of the Union," 6 and 9 a.m. - Former New York City Mayor Rudy Giuliani; Sens. Chuck Schumer, D-N.Y., Lindsey Graham, R-S.C., and William "Mo" Cowan, D-Mass.; Rep. Michael McCaul, R-Texas; former Attorney General Alberto Gonzales; former Rep. Tim Roemer, D-Ind.
• NBC's "Meet the Press," 8 a.m., Channel 4 - Sen. Dick Durbin, D-Ill., and Rep. Mike Rogers, R-Mich.
• "Fox News Sunday," 8 a.m., Channel 11 - Sen. Dianne Feinstein, D-Calif., and Rep. Peter King, R-N.Y.
• CBS' "Face the Nation," 9 a.m., Channel 13, Comcast Channel 7 - McCaul; Sen. Tom Coburn, R-Okla.; Giuliani; former Homeland Security Secretary Tom Ridge; Carlee Soto, Erica Lafferty and Neil Heslin, who lost relatives in the Newtown, Conn., school shooting.