10Ibrahim al-Asiri

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Also known as Abu Saleh, al-Asiri is a member of the al-Qaida and is a chief bomb-maker. Formerly a chemistry student, he has knowledge in PETN bombs and is said to be at the forefront of plotting attacks on airlines.  He is also rumored to have designed the “underwear” bomb that was intercepted in 2009. Click the next ARROW to see the next image!