Adam L. Silverman, PhD*
COL Lang asked for information pertaining to centrifuges, enrichment, and proliferation. At the following two links are two excellent articles - one article and one report - dealing with these issues.
Alexander Glaser's "Characteristics of the Gas Centrifuge for Uranium Enrichment and Their Relevance for Nuclear Weapon Proliferation (corrected)" from Science and Global Security, 2008
Krass et als "Uranium Enrichment and Nuclear Weapon Proliferation" from SIPRI, 1983.
* Adam L. Silverman is the Cultural Advisor at the US Army War College. The views expressed here are his own and do not necessarily reflect those of the US Army War College and/or the US Army.
** Imageof Krakoa the Island that Walks Like a Man, found at Doctor Nerdlove and taken from the story in Giant Sized X-Men #1