I think this cannot curb it but will only encourage .The best way,althugh it is a slow process, is to educate the people with true meaning of Jehad. The ulemas(clergymen) need to take up the responsibilty of telling what actually jehad is? The people who opt for jehad make their mind for everything unexpected,whether death,encounter,harrasments etc, for the sake of heaven. We need to preach the true way to go to heaven(Jannat).