nor did she make a mistake when the American consulate told her she didn't need a visa. Seems the "mistake" lies entirely with the US authorities. I wonder why? Perhaps somebody didn't like what she was researching?
BTW, she also made applications to get access to recently opened German BND archives. Surprise, surprise, the archives were suddenly closed again on orders from high above, the German Chancellor herself :-D
Gaby Weber sued, a number of scientist and politicians (Left Party) joined her in this endeavor and it took quite a while, until 21 January 2011, for the Federal Court to agree with her and open these archives again:
http://www.heise.de/tp/r4/artikel/34/34056/1.html (sorry, in German again, but I'm sure you are able to use a translator)