Antecedent/Subject and verb of 'that'

0An extract from a newspaper 'The Star,Thursday 5 June 2008':02br
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00Nasa: Toilet trouble won't force ISS evacuation02br
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00...02br
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00"At this point in time, we dont't believe that the ISS would be forced into a de-crewing situation," ISS deputy programme manager Kirk Shireman said at Nasa's Johnson Space Centre.02br
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00The ISS can use the shuttle's toilet while it is moored at the station, while special bags to collect urine were also available, he said.02br
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00Disposing solid waste has not been a problem, he added.02br
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00"It's unfortunate we're talking about toilets, but01u01b00 that02b00 02u00really is the life, the future of human exploration in space," Shireman said.02br
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00...-AFP02br
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00Hello,02br
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00What is the antecedent or subject and verb of the underlined word 'that' in bold?02br
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00Thank you. 02br
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00With best wishes.0-