Keister bombs are not very effective

In-body bomb is not smart, experts say:

A month ago in Saudi Arabia, a terrorist named Abdullah Hassan Tali' al-Asiri reportedly walked past palace checkpoints with a small bomb inserted in a body cavity. Judging by the al-Qaida video featuring him proudly holding a device before committing the deed, it was about 3 inches long.

He wanted to blow up a Saudi prince but succeeded only in blowing off his own bottom half and destroying the floor.

His intended target, Prince Mohammed bin Nayef, and others in the room were largely unharmed. A Saudi news service quoted the prince as saying, understatedly, "He surprised me by blowing himself up."

Al-Asiri's technique has given rise to the term "keister bomb" online.

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