WASHINGTON, November 10, 2012 (AFP)US President Barack Obama urged Congress Saturday to immediately extend a tax cut for middle-class Americans, arguing the move will give 98 percent of families and 97 percent of small businesses the certainty that will lead to faster economic growth."This is something we all agree on," the president said in his weekly radio and Internet address. "Even as we negotiate a broader deficit reduction package, Congress should extend middle-class tax cuts right now.