Most definitely not. I concede that I would cancel if I was planning to take a trip to Iraq, Kuwait, Turkey or Iran in the next month or so, but other than that - NO WAY. You will have a more dangerous time in the traffic in Rome and Paris than you will have of being involved in a terrorist attack (I mean that
- some of the driving is crazy, and it's all on the wrong side of the road - remember that when you want to jay walk across 8 lanes of the Champs Elysees - I did when I was half way across and found I was NOT loking in the direction of the oncoming traffic
).
Have fun, take lots of film, and invest in a digital camera.