Where to report poss security flaw at KJFK?
 

On recent trip back I ended up doing two security checks and spotted a possible security flaw.

Is there a good (secure) place to notify? It's very obscure but if I figured it, someone nastier might.

PS Generally very impressed by the arrangements. For the JFK terminal I was in, the procedure seemed at least as thorough as European checks, and (although not the point) the staff were incredibly polite throughout the very thorough check.