FFMAN & roverman are correct. I don't use MAN now for any domestic travel as it is far too time consuming and a hassle- this is to the detriment of Flybe who must lose out on huge chunks of business, now being relegated to a low fee connecting service for the majors.
Any bottleneck could be considered a terrorist target- hence car park/ barrier queues, security queues, check in queues are actually creating targets for the deranged. The very act of creating these bottleneck for "our security" is in fact making us less secure. The key needs to be engineering free flow of people- what we have got is engineered money making schemes.