The release of reports such as this is itself is a form of terrorism, whose side are these people on, anyway?
That's why they release tapes every month or so. Even if it were true, what more could we possibly do? Statistically, I wonder the possibility of dying in a dirty bomb attack, compares to one dying in a car accident, being a murder victim, or just dropping dead tomorrow. If nothing else, the reports serve to psychologically prepare people for the worst. IMHO, if this were from a reliable source, even France would be on our side.