United States Senate/United States House of Representatives

In a "This Week" Sunday exclusive, Senate Intelligence Committee Chair Sen. Dianne Feinstein, D-Calif., and House Intelligence Committee Chair Rep. Mike Rogers, R-Mich., answer questions about the newly disclosed government programs to collect data on phone calls and Internet activity.

This week's leaks of classified documents revealed two sweeping surveillance programs that allow the U.S. government to compile information on every phone call made in America, as well as to tap into the data of leading Internet companies to track a vast swath of Internet activity overseas. Has the government gone too far, or are such programs necessary to detect and prevent terrorist threats? Are proper safeguards in place to protect Americans from unreasonable intrusions into private information, or should the programs be changed?

Intelligence committee chairs Sen. Dianne Feinstein and Rep. Mike Rogers answer those questions and more, Sunday on "This Week."

Plus, the Guardian's Glenn Greenwald, the journalist who broke the story on the NSA's surveillance programs, discusses what we learned this week about the scope of U.S. surveillance. And Senate Intelligence Committee member Sen. Mark Udall, D-Colo., who has raised warnings about the government's surveillance capabilities, goes one-on-one with George Stephanopoulos about his concerns.

And the powerhouse roundtable debates all the week's politics, with ABC News' George Will; ABC News ABC News political analyst Matthew Dowd; Congressional Progressive Caucus co-chair Rep. Keith Ellison, D-Minn.; New York Times columnist and Nobel Prize-winning economist Paul Krugman; and Fox News anchor Greta Van Susteren.

See the whole political picture, Sunday on "This Week."

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