Email letter from Roxana in Monterrey, Mexico, describing her success in obtaining a situation room in her ITESM Systems Engineering department, similar to the DEMOSOPHIA room at George Mason University. I suppose Warfield kept this letter in his desk or study for years because of the significance of Roxana's achievement in getting that room installed. The Warfield Special Collection has five folders altogether with Cardenas correspondence, covering the years 1990 - 1996, however there are many more letters and communications from this very important colleague in the years after this 1996 letter, which were never printed out from Warfield's email files, and now exist digitally if at all, only in his old AOL email diskettes. Roxana is so remarkable a person that surely someday people will search for her life story. I hope our scattered memoirs of her work can exist until then. I wish I could describe her, but won't try because it would be inadequate. Everyone loves her.