Lockheed Martin-Marinette Marine and Austal USA have officially agreed to extend their price guarantees for the Littoral Combat Ship until Dec. 30, giving Congress more time to pass legislation approving the Navy's dual-block buy plan, according to an announcement the service released this morning. "The Navy has asked for and received from Lockheed Martin and Austal a limited extension on the prices submitted under the current LCS solicitation,” Navy spokeswoman Capt. Cate Mueller wrote in an e-mail. “The extension provides...