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We don't know factually what, if they share intel wise.
As you said; "what is said in private is different from what is said in public."

That applies to what our govt officials say about the UAE, Dubai in particular.

We need the port of Dubai, for military operations in Iraq and it's cooperation, as best we can get it. Our officials may just be blowing diplomatic smoke for all you and I know. We're not privy to what and anything the UAE shares with us.

We do know that the UAE has shipped nuclear hardware to Iran, we do know that the UAE is on VERY friendly terms with Iran.

Take a look at this, in the "Islamic Republic news Agency":
Iran-UAE-Trade
Iran and UAE explored here Wednesday ways of expanding bilateral trade relations.
"Iranian Commercial attache in UAE Qassem Mirzaie told IRNA that the meeting focused on expansion of trade ties between Iran's Mazandaran province and Dubai."

I went into reading about this port deal with a fairly impartial attitude.

But the more I've read about the UAE, it's government, and it's relationship with countries like Iran, the more I became convinced that we would be better off without DP World's Islamic govt influence in our country, and on our politicians.

We haven't needed them now or in the past, and we don't need them in the future for any of our our domestic port operations.
This deal is far more beneficial for the Crown Prince of Dubai, then it is for the U.S.

we do know that the UAE is on VERY friendly terms with Iran.

They are so friendly with Iran that they have helped us surround Iran with allowing us to use their ports and air bases, last time I checked we have troops in Afghanistan and Iraq, looks like Iran is between a rock and a hard place.