Al-Qaeda's top bomb-maker's threat to America

"Because Al-Asiri has a capability that very few other members of Al-Qaeda possess, we have to pay very close attention to what he says, because he may very well be able to carry out what he threatens."- Col Cedric Leighton (Ret), Military analyst

"We will not leave you alone as long as we have a pulsing vein within us."- Ibrahim al-Asiri to the U.S

Words from top Al-Qaeda bomb-maker Ibrahim al-Asiri and footage of his abilities emphasize Al-Qaeda's unique and dangerous capabilities, as well as their dedication to anti-American actions. As Ret Col Leighton warns, it is wise to pay close attention to threats promised by Al-Qaeda, especially with the capabilities of Al-Asiri.