 Engineers are still investigating. NASA hasn't yet said when the two astronauts will return to Earth. I'm Corva Coleman, NPR News in Washington. And I'm Luis Hernandez in Providence. A lawyer hired by the state of Rhode Island says it's more than likely that a lawsuit will be filed over what went wrong with the westbound Washington Bridge. Providence lawyer Max Wisto told reporters yesterday that a final decision on whether to file a suit is expected in early August.