Bush, in his speech last week, alleged Tahir used a Dubai computer company as a front for Khan's network, and directed the Malaysian company to produce centrifuge parts based on Pakistani designs. Bush said Khan's network used front companies to "deceive legitimate firms into selling them tightly controlled materials."
A senior US official said during a visit to China on Monday that Bush doesn't hold Malaysia responsible.
"There was never any suggestion that the government of Malaysia was involved," said John Bolton, an undersecretary of state, adding that the Malaysian firm might not have known its equipment was for nuclear use.



