Hi,
I am a newbie here.
I posted this question in the wrong forum earlier. Hope I don't duplicate this question again.

I will fly from FRA to USA. I heard the security check to US is tight. I have some questions as below.
-Is there express line for custom and security check at Frankfurt Airport for LH Business class customer?
-What is the beginning boarding time prior Departure from FRA to US via LH?
-What time the LH gate close?
Thank you