Well this really is a topic I would have thought more appropriate to the minor pages of The Daily Mirror on a slow news day rather than a pilots' forum whose members know a thing or two about relative risks. By definition secondary security are checking pax who have already ben checked. Do we need a thread here every time they find anything ...?
And what's so threatening about a corkscrew. Just about everybody owns one yet I have never heard of any incident from people misusing them at all, other than injuring yourself when opening the third bottle of the evening with friends !
Should we allow a professional wrestling team aboard ? After all, they might overpower all the crew.