Bush: Nuke-less Iran remains dangerous

# NEW: Iranian envoy says Iran has never sought nuclear weapons
# Iran could transfer civilian nuclear work to military, President Bush says
# U.S. intelligence estimate says Iran stopped nuclear arms work in 2003
# U.S. national security adviser says U.S. policy toward Iran unchanged

WASHINGTON (CNN) -- Iran remains a danger to the world even though it stopped a program to develop a nuclear weapon four years ago, President Bush said Tuesday.

"Iran was dangerous, Iran is dangerous and Iran will be dangerous if they have the knowledge necessary to make a nuclear weapon," Bush said, pointing out that Tehran continues to try to enrich uranium for civilian purposes and therefore develop technology that could be used for a weapon.

A declassified summary of a National Intelligence Estimate released by the U.S. government on Monday said Iran had stopped working toward a nuclear weapon in 2003 and is unlikely to be able to produce enough enriched uranium for a bomb until at least 2010.

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