Off topic question please.

I am flying next week from New York JFK airport to London.

I bought a new AirPort Extreme that I wish to bring with me.

Where should I put the router ? :

In my personal Troll that comes with me to the plain , OR

Leave it inside my big souitcase that going to the plain baggage ?

I'm afraid that with me the security will not understand this item and thay will not aloud me to continue with it.

Thanks