U.S. officials are taking a close look at the latest audiotape of al-Qaida's second-in-command to see if it contains a coded message to launch a terrorist attack.
The tape of Ayman al Zawahri was posted Wednesday on the Internet, and ABCNews.com says one phrase is repeated three times at the end:
Have I not conveyed? Oh God be my witness.
Have I not conveyed? Oh God be my witness.
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Have I not conveyed? Oh God be my witness.
An FBI analysis of al-Qaida messages, obtained by ABCNews.com, warns that "continued messages that convey their strategic intent to strike the U.S. homeland and U.S. interests worldwide should not be discounted as merely deceptive noise."