There is a pattern of activity that suggests they would like to attack Iran. Bush has named it as one part of the "axis of evil" - he has already attacked and invaded one member of the "axis of evil" - it's not too much of a stretch to assume he'd like to attack every member of his "axis." Add in all the other statements and actions, and it not too far-fetched to consider the pattern as a whole.

__________________
"All truth passes through three stages. First, it is ridiculed. Second, it is violently opposed. Third, it is accepted as being self-evident." - Schopenhauer