<sod >A leaked document from Mossad â which was obtained by Al Jazeera and Guardian â says that uranium was being used as fuel for the Tehran Research Reactor (TRR) to generate energy and not weapons.< eod>< sod > The document, one of hundreds of files obtained from many of the world's intelligence agencies and leaked to Al-Jazeera yesterday, reveals that uranium was not being used to make nuclear weapons, but was instead being used as fuel for the Tehran Research Reactor (TRR) to generate energy.< eod>