▁ 2 0 1 5 ▁report , ▁saying ▁it ▁had ▁found ▁no ▁cred ible ▁evidence ▁of ▁nuclear ▁weapons ▁activity ▁in ▁Iran ▁after ▁ 2 0 0 9 . ▁ ▁I AE A ▁The ▁International ▁At omic ▁Energy ▁Agency ▁( IA E A ) ▁is ▁an ▁autonom ous ▁international ▁organization ▁that ▁see ks ▁to ▁promote ▁the ▁peace ful ▁use ▁of ▁nuclear ▁energy ▁and ▁to ▁in hib it ▁its ▁use ▁for ▁military ▁purposes . ▁ ▁On ▁ 6 ▁March ▁ 2 0 0 6 , ▁the ▁I AE A ▁Secret ariat ▁reported ▁that ▁" the ▁Agency ▁has ▁not ▁seen ▁indic ations ▁of ▁di version ▁of ▁nuclear ▁material ▁to ▁nuclear ▁weapons ▁or ▁other ▁nuclear ▁explos ive ▁devices ▁... ▁however , ▁after ▁three ▁years ▁of ▁int ensive ▁ver ification , ▁there ▁remain ▁un cert aint ies ▁with ▁regard ▁to ▁both ▁the ▁scope ▁and ▁the ▁nature ▁of ▁Iran ' s ▁nuclear ▁programme ". ▁However , ▁the ▁inspect ors ▁did ▁find ▁some ▁sensitive ▁documents , ▁including ▁instructions ▁and ▁diag rams ▁on ▁how ▁to ▁make ▁u ran ium ▁into ▁a ▁sphere , ▁which ▁is ▁only ▁necessary ▁to ▁make ▁nuclear ▁weapons . ▁Iran ▁furn ished ▁the ▁I AE A ▁with ▁copies , ▁claim ing ▁not ▁to ▁have ▁used ▁the ▁information ▁for ▁weapons ▁work , ▁which ▁it ▁had ▁obtained ▁along ▁with ▁other ▁technology ▁and ▁parts ▁in ▁ 1 9 8 7 ▁and ▁the ▁mid - 1 9 9 0 s . ▁It ▁is ▁thought ▁this ▁material ▁was ▁sold ▁to ▁them ▁by ▁Abd ul ▁Q ade er ▁Khan , ▁though ▁the ▁documents ▁did