“The defendant’s argument is that the harmful event took place solely in France in that the accident and the initial injuries occurred at the same time and that the deterioration is no more than a consequence of those initial injuries. In a sense that is true, but it ignores that the French law prescribes two separate causes of action to these two sets of injuries. The first certainly occurred in France and was properly dealt with there by the award of the French Court. At that stage there were no additional injuries for which the claimant could claim damages. It was only in later years that the deterioration occurred and this is the further harmful event on which the claimant relies.”