In terms of security I would be much happier with DXB or Kuwait than TLV! Even if things kick-off in Afghanistan, the Middle East is far enough away to avoid direct trouble.
I don't think BA will take any chances either. After dropping a 747 in to the middle of the Iraqi invasion of Kuwait I think BA will be a little more cautious next time.
If I was in your position I would go to the middle east as planned. I am refusing to let the ba5tards disrupt my life. Unfortunately too many people are changing their plans because of what 11 Sep. When that happens the ba5tards win. They get exactly what they want - disrupt our plans and hit our economies.