Following the Flight Day 11 meeting of the Mission Management Team on July 14, which examined small leak on Discovery's Auxiliary Power Unit No. 1 and options for dealing with the possibility that the leak is hydrazine fuel, chairman John Shannon gives a detailed briefing on the situation and what this could mean for the shuttle's landing.
Source: NASA TV (21 min QuickTime Broadband - Part 2 file)
Download this clip to your hardrive.
(Windows users right-click this link. Mac users control-click this link)