Tonight on Special Report with Brit Hume:

Iraq's information minister threatens coalition troops with "non-conventional" attacks, possibly as soon as nightfall, after allied troops tighten their grip on the area surrounding Baghdad.

Plus:

• U.S. forces seize the Baghdad airport in an all-night tank and infantry operation, securing a vital base for taking the war into its expected next phase -- urban combat in the Iraqi capital.

• A car explodes at a special operations checkpoint in western Iraq, killing three coalition soldiers, a pregnant woman and the car's driver.

• U.S. troops find thousands of boxes of white powder, nerve agent antidote, unidentified liquid and Arabic documents on how to engage in chemical warfare.

• U.S. Marines report that about 2,500 Iraqi Republican Guard surrendered between Kut and Baghdad.

Details on these stories and more on Special Report with Brit Hume.
— Guests and topics are subject to change