David Welna David Welna is NPR's national security correspondent.
Behind the Messages on Stopping Terrorism, and Iraq
Petraeus Discusses Iraq Funds with Lawmakers
House, Senate Agree on Timetable for Iraq Pullout
Bush to Confer with Democrats on War Funding
Senate Legislative Wins May Be Short-Lived
Senate Backs Embryonic Stem Cell Research
Stem-Cell Debate Returning to Center Stage
Senate Takes Up Stem-Cell Bill; Bush Vows to Veto
Senate Bypassed on Many Key Justice Jobs
Senate Enters War-Spending Debate
Bush: House Timetable on Iraq Won't Survive Veto
House, Senate Maneuver on War-Funding Measures
Iraq Spending Vote a Challenge for Democrats
Senate Votes to Resume Attorney Confirmation
Ex-Spy Plame Wilson: Leak Was 'Purely Political'