NASA Deputy Administrator Shana Dale listens to a question during a press conference at NASA headquarters in Washington

 
NASA Deputy Administrator Shana Dale listens to a question during a press conference at NASA headquarters in Washington
NASA Deputy Administrator Shana Dale listens to a question during a press conference regarding agency reviews of astronaut medical and behavioral assessments, at NASA headquarters in Washington, July 27, 2007. REUTERS/Stelios Varias (UNITED STATES)