Bomb Maker to US, Saudis: Will Hit You While There's a 'Pulsing Vein Within Us'

In a chilling new audio threat, the al-Qaida expert explosives-maker who designed the failed "underwear bomb" is vowing to keep targeting the United States "as long as we have a pulsing being within us."

Ibrahim bin Hassan al-Asiri, from Yemen, says in an audio recording released Monday by the group's official media that there also will be retaliation for the execution of a Sunni cleric and 46 others in Saudi Arabia earlier this month – its largest mass execution since 1980.

Al-Asiri claims the 47 who were killed fought the "Crusaders" occupying the Arabian Peninsula, ands says the Saudis will be dealt with in a "different way," without elaborating.

According to CNN, the audio threat to the United States was vague, and ominous.

"We will not leave you alone as long as we have a pulsing vein within us," CNN reports on "The Situation Room."

New York GOP Rep. Peter King called al-Asiri "extremely lethal," and emphasized the al-Qaida branch in the Arabian Peninsula has always been intent on launching "an attack on the United States."

Al-Asiri is believed to have built the sophisticated bombs used in a failed attempt to bring down a U.S. passenger plane and a failed assassination attempt on Saudi Arabia's then-deputy interior minister in 2009.

Saudi Arabia executed 47 people earlier this month, including several al-Qaida militants, in its largest mass execution since 1980.

The Associated Press contributed to this report.

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