Originally Posted by
jester42
Once the bag has been X-rayed/searched what on earth has the size got to do with security?
Yes, you may well wonder that. Likewise for number/quantity of bags.
It all arises from the targets the government has set for processing time at security. Rather than provide adequate resources, let alone a little slack in the system to turn out just a bit better than those targets, a number of security managements have unilaterally imposed these restrictions as a way of minimising the amount of work they have to do and therefore just manage to come inside the target time by reducing what they do.