Be careful if you are getting on a plane this week. It seems that fear and paranoia knows no boundaries these days among the travelling public. I just read this article on the BBC News website and was amazed that intelligent people behave in this way. I tend to do a lot of Killer Su Doku on long flights. I guess I will have to be careful when scribbling my workings-out on sheets of paper. Click on the image to read the article.