▁no ▁use ▁other ▁than ▁in ▁a ▁nuclear ▁weapon , ▁and ▁claimed ▁the ▁document ▁appeared ▁to ▁be ▁from ▁an ▁office ▁in ▁Iran ' s ▁Def ense ▁Ministry ▁and ▁may ▁have ▁been ▁from ▁around ▁ 2 0 0 7 . ▁Norman ▁Dom bey , ▁professor ▁emer it us ▁of ▁theoretical ▁physics ▁at ▁Sus sex ▁University , ▁wrote ▁in ▁that ▁" nothing ▁in ▁the ▁published ▁' int elligence ▁documents ' ▁shows ▁Iran ▁is ▁close ▁to ▁having ▁nuclear ▁weapons " ▁and ▁argued ▁that ▁it ▁is ▁" un likely ▁that ▁nuclear ▁weapon ▁projects ▁would ▁be ▁distributed ▁among ▁several ▁univers ities , ▁or ▁weapon ▁parts ▁market ed ▁to ▁research ▁cent res ." ▁A ▁senior ▁U . N . ▁official ▁who ▁saw ▁the ▁document ▁said ▁it ▁may ▁or ▁may ▁not ▁be ▁authentic , ▁that ▁it ▁was ▁unclear ▁when ▁the ▁document ▁was ▁written , ▁and ▁that ▁it ▁was ▁unclear ▁whether ▁any ▁experiments ▁had ▁ever ▁actually ▁been ▁performed . ▁The ▁C . I . A . ▁did ▁not ▁declare ▁whether ▁it ▁bel ieves ▁the ▁document ▁was ▁real , ▁and ▁European ▁sp y ▁ag encies ▁also ▁did ▁not ▁give ▁any ▁authentication ▁to ▁the ▁document . ▁Western ▁intelligence ▁ag encies ▁said ▁that , ▁if ▁genu ine , ▁it ▁was ▁unclear ▁whether ▁the ▁paper ▁provided ▁any ▁new ▁ins ights ▁into ▁the ▁state ▁of ▁Iran ian ▁weapons ▁research . ▁" It ' s ▁very ▁trou bling ▁– ▁if ▁real ," ▁said ▁Thomas ▁B . ▁C och ran , ▁a ▁senior ▁scient ist ▁in ▁the ▁nuclear ▁program ▁of ▁the ▁Natural ▁Resources ▁Def ense ▁Council . ▁The ▁Institute