ABC's "This Week" — Sens. John McCain, R-Ariz., and Dianne Feinstein, D-Calif.; Rep. Duncan Hunter, R-Calif.
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CBS' "Face the Nation" — Sens. Carl Levin, D-Mich., and Lindsey Graham, R-S.C.
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NBC's "Meet the Press" — Sen. Chris Dodd, D-Conn.
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CNN's "Late Edition" — Nabi Sensoy, Turkish ambassador; Mohamed ElBaradei, International Atomic Energy Agency chief; Sens. Barbara Boxer, D-Calif., and Trent Lott, R-Miss.; former Gov. Mike Huckabee, R-Ark.