Yes, BBC North West Today reported the queues as well.
In the M.E.N. comments by the airport spokesperson included:
“This morning in Terminal One we saw a build-up of passengers at security but kept the queue moving at all times by opening more security lanes and adding more resources".
It's not surprising if the question is asked: why weren't all security lanes open earlier? The impression is given that only when the queue gets very long is action taken, rather than anticipating the problem to try and prevent queues becoming too long in the first place. And as betablockeruk implies, it's a bit late in the season to start thinking about extra security staff. The airport were aware of the pax increase in MAY, airline schedules and must surely have information about booking levels and terminal throughput.
To be fair, there was no comment that I saw as to how long it was taking passengers to get through security, and given the limited space for queues inside the terminal (I assume the queue goes straight outside from the security channel entry point rather than snaking round inside the terminal causing more mayhem), the length of the queue may be slightly deceptive.