Balderdash.
I heard that from a nuclear expert on the Michael Savage show. He knew what he was talking about.
"Balderdash."
Exactly.
This fellow does not know of what he speaks.
I think it is entirely possible that a nuclear weapon is here in the US. And it need not be of the subcritical tritium boost/trigger variety.
It doesn't take all that much more plutonium to produce a crude "gun barrel" type weapon that would have a significant yield. It doesn't have to be perfect.
This was the type of design used in "Little Boy", the bomb that destroyed Nagasaki.
OTOH, can you imagine the disaster and disruption that several pounds of anthrax released by balloons over several cities would cause?
This may be just as likely, and probably much easier to achieve.
Either way I am not discounting the idea that there is something big brewing.