Abu Zubaydah says al Qaeda aims at building ”dirty bomb”: “Abu Zubaydah also told interrogators al Qaeda knew how the weapon could be smuggled into the United States. The network added that officials were unsure whether Zubaydah was ‘telling the truth or bragging.’

It said an FBI public warning issued on Friday to banks in the United States was based on a claim by Abu Zubaydah that al Qaeda was planning attacks on financial institutions.” Al Bawaba