1/ As I have been speculating based on the publicly available info, RBG turns out to have been on chemo to treat her advanced pancreatic ca. It's got to the point where she can't hide it anymore. So she announced her treatment info today..
B) Immunotherapy didn't work. That's the latest type of therapy where it could be tailor made and targeted. She started on it as sooon as her liver mets were discovered. That means she lost precious 3 months.