Quarantined Expedition 31 prime crew members, from left, NASA Flight Engineer Joe Acaba, Russian Soyuz Commander Gennady Padalka, and Russian Flight Engineer Sergei Revin answer reporters questions from behind glass during a prelaunch press conference held at the Cosmonaut Hotel on Monday, May 14, 2012 in Baikonur, Kazakhstan. The launch of the Soyuz spacecraft with the crew of three is scheduled for 9:01 a.m. local time on Tuesday, May 15. Photo Credit (NASA/Bill Ingalls)