I am due to try DUB shortly to the US, connecting from a UK airport.

It looks like you can buy fast track security on the airport website. Is that just for someone departing from DUB, or does it cover the TSA part of security when connecting to a US flight?

Although discussed upthread, there seems some disagreement as to whether the TSA part at DUB recognises pre-check. Do they? I have a two hour layover, wondered if that will require any need to rush. I have GE.

Thank you.