The Washington Post has a really interesting - and poignant - article on the crew currently docked at the International Space Station. The piece discusses the three-person crew's willingness to remain in space for another year if deemed necessary (because of the recent Columbia tragedy) by NASA.
What really got me, however, was the article's description of how the crew dealt with grieving for the Columbia shuttle, including this passage that contrasts American astronaut Kenneth Bowersox's emotions with those of the American astronaut who was in space at the time of 9/11:

"The crew said ground controllers had eased their schedule to allow them time to grieve. Bowersox said he had not felt the sense of isolation described by another U.S. astronaut, Frank Culbertson, who was the only American off the planet when hijacked planes were used to attack the Pentagon and bring down the World Trade Center towers on Sept. 11, 2001."

(FYI: Visiting the Washington Post site and reading the entire article you might require a quick, free registration...)