Who told you that, Chris? Where and when, precisely? And have you heard of any EU visitors being upset? Why on Earth did you think you had to ask if it was OK to say you were English, or to fly your flag? Seriously, and it gets my back up big style, it is this sort of ridiculous - and false - belief that fans the flames. You probably also believe we are expected to say 'Happy Holidays' rather than Christmas as it offends Muslims (hint: it doesn't, they just don't celebrate it) or that the word Easter was banned from chocolate eggs this spring (hint: it wasn't) or that Nativity plays in junior schools are now required to be similarly amended for fear of offence (interesting fact: Muslims, and a lot of European countries too, have similar tales of Jesus, Mary and Joseph, so why would it offend them?)
I ask once again, in all seriousness, who told you that you couldn't fly the Cross of St George? (He was, of course, a foreigner anyway).