"Experience has taught us that we can only get out captives back by sticking to our principles, fighting and carrying out more kidnapping operations," Hizbullah's Deputy Secretary-General Sheikh Na'im Kassem said Sunday. In a speech marking the return of a Hizbullah guerrilla's body transferred by Israel last week in a swap involving drowned Israeli Gavriel Daweet, Kassem said: "If you want to know the value of the prisoner exchange, listen to (Prime Minister Ehud) Olmert who spoke of the 'heavy price' that was paid."