I dont think anything could be 100% safe as a way of Security
In Belfast airports there are a lot of people who work in security ( AIRPORTS OR OTHER) who might have a less than true security check or not totaly traceable for 10 years but who is to say a person that has worked in security for years all through the troubles here defenfing the good honest public might hear a voice in their head from a god or other notable figue and snap.
We have to trust not panic!
After 9 / 11 I remember an instance a local man complained about a Muslim familty and a man wearing a turban on a flight, " They coud have killed us all was the cry all over the teminal from him
The family were so embarased as they were local as well , Belfast accents and all , So dont judge a book from a book review!!