From NPR News in Washington, I'm Jack Speer.Investigators are still trying to find outwhat prompted a woman with a young child in her car to drive into security barriers near the White House and the Capitol building today,who'd been shot and killed by police.NPR's Craig Windham reportsa uniform Secret Service officer and a Capitol police officer were injured in the incident,which prompted a temporary lockdown on Capitol Hill.Police say the women first struck one of the security barriers near the White House.Then Metropolitan Police Chief Cathy Lanier saysthe woman sped off toward the Capitol building with police close behind."This was a lengthy pursuit.There were multiple vehicles that were rammed.There were officers that were struck,and two security perimeters that were attempted to be breached."When the woman backed into a police car near the Capitol, Lanier saysofficers began shooting to try to stop her.She managed to get away but then crashed her car at a nearby security barrier.Officers there opened fire and she was pronounced dead at the scene.The child who was with the woman was not hurt and is in protective custody.Craig Windham, NPR News, Washington.Congress is at a standstilland still there is no end in sight to the government shutdown.As NPR's Tamara Keith reports,the House spent the day taking votes on bills the Senate has already said it will reject.First it was World War II veterans not being able to get into monuments,then children with cancer being turned away from clinic trials at the National Institutes of Health.House Republicans donned white lab coats to press the Senate to take up a bill to reopen NIH.Renee Ellmers is a North Carolina Republican, who was a nurse before entering Congress.