" ▁or ▁Parliament ) ▁sent ▁a ▁letter ▁to ▁UN ▁Secretary - General ▁K of i ▁Ann an ▁threaten ing ▁to ▁withdraw ▁from ▁the ▁N PT ▁if ▁Iran ' s ▁right ▁to ▁peace ful ▁use ▁of ▁nuclear ▁technology ▁under ▁the ▁treat y ▁was ▁not ▁protected . ▁ ▁On ▁ 2 1 ▁February ▁ 2 0 0 7 , ▁the ▁same ▁day ▁the ▁UN ▁dead line ▁to ▁susp end ▁nuclear ▁activities ▁exp ired , ▁Mah m oud ▁A hm ad ine j ad ▁made ▁the ▁following ▁statement : ▁" If ▁they ▁say ▁that ▁we ▁should ▁close ▁down ▁our ▁fuel ▁production ▁facilities ▁to ▁res ume ▁tal ks , ▁we ▁say ▁fine , ▁but ▁those ▁who ▁enter ▁tal ks ▁with ▁us ▁should ▁also ▁close ▁down ▁their ▁nuclear ▁fuel ▁production ▁activities ". ▁The ▁White ▁House ' s ▁sp ok esp erson ▁Tony ▁Snow ▁rejected ▁the ▁offer ▁and ▁called ▁it ▁a ▁" false ▁offer ". ▁ ▁Iran ▁has ▁said ▁that ▁U . N . ▁Security ▁Council ▁san ctions ▁aim ed ▁at ▁cur tail ing ▁its ▁u ran ium - en rich ment ▁activities ▁unf air ly ▁target ▁its ▁medical ▁sector . ▁" We ▁have ▁thousands ▁of ▁patients ▁a ▁month ▁at ▁our ▁hospital ▁alone ▁.. ▁If ▁we ▁can ' t ▁help ▁them , ▁some ▁will ▁die . ▁It ' s ▁as ▁simple ▁as ▁that ," ▁said ▁an ▁Iran ian ▁nuclear ▁medicine ▁special ist . ▁An ▁Iran ian ▁Jew ▁from ▁California ▁claimed ▁" I ▁don ' t ▁believe ▁in ▁these ▁san ctions ... ▁They ▁hurt ▁normal ▁people , ▁not ▁leaders .