Interesting that the suitcase question is no longer required, it certainly was when we checked in at Manchester 18 months ago to fly Virgin to the States and it most certainly was when we checked back in at Orlando for the homeward flight.
Just as an aside my wife & daughter flew to the States on United this summer and I was in the queue with them to check in to assist with suitcases, the pre- check in guy who was stationed half way down the check in queue actually asked me to stand aside because I wasn't flying away from earshot of questions he was asking about the baggage. I was though allowed to re-join them once he'd finished his questioning.
Just as an aside my wife & daughter flew to the States on United this summer and I was in the queue with them to check in to assist with suitcases, the pre- check in guy who was stationed half way down the check in queue actually asked me to stand aside because I wasn't flying away from earshot of questions he was asking about the baggage. I was though allowed to re-join them once he'd finished his questioning.