The visitors' entrances to the National Institutes of Health are blocked off with traffic cones. The usually teeming campus, spread over rolling green hills in the Washington, D.C. suburb of Bethesda, Md., is quiet. The patients inside aren't so quiet, however. Justin Smith and his daughter McKenna are both furious at Congress. "They need to stop acting like babies," says McKenna, who turns 13 on Friday. McKenna slipped into a clinical trial under the wire this week, arriving on the NIH campus just as the government shutdown closed down the start of medical studies like the one she is taking part in.