its like killing the mosquito that bites you. you need to eradicate the hotbed of the entire species of mosquitos that is impossible. the thing is that Al-kaida is just the label for those who share the same world view with Bin laden. his spirit is alive within millions of his supporters around the world. there are numerous acts of terror carried out not by al-kaida itself but on behalf of it by independent groups having no attachment to al-kaida. Furher on, its the US and Israel's thoughtless policies that conduce more and more people to take oath and join terrorist groups to fight against U.S. and israel at the expense of sacrificing their lives for they have lost their beloved ones already, thus nothing to loose futher.
Australian, Thai journalists acquitted of defaming Thai navy (AP)
from the article: U.S. believes it can now destroy al-Qaida after killing bin Laden