Absolutely terrible news about Brussels and it does look to most of us very similar to an Aussie airport/city so the perceived relevance fear is understandable ie it could have been us huh?...but I
think what Humayun and Mark are referring too is not the obvious horrors occurring daily in the trio of Afghanistan, Iraq or Syria and to which most of us have become desensitised to....but rather it is that which is well explained
HERE
Mike