An undergrad taking a 200 level class.
Here is another good site for the Manhattan Project although it is more devoted to the history of the program.
I refuse to split hairs over this pointless detail when my main point in the first place was; There is no easy way to produce a fusion bomb.
You seem to be well versed on this subject, so why spread unnecessary panic amongst the people who are not?
My point is; If a Terrorist group manages to obtain enough radioactive material to produce a DIRTY BOMB, the results will be serious but not devastating to the degree of a Nuclear Device. A DB might effect an area of several city blocks but it will not achieve the mass destruction or geographical contamination that the Terrorists are looking for.