Al-Qaida vows revenge for bin Laden killing

Al-Qaida confirmed the killing of Osama bin Laden today and vowed revenge, saying Americans’ “happiness will turn to sadness” in the first statement by the terror network since its leader was killed in a US commando raid against his Pakistani hideout.

The confirmation came as newly uncovered documents found in bin Laden’s residence revealed al-Qaida plans for derailing an American train on the upcoming 10th anniversary of the September 11 attacks.