a 3ft by 5 ft flag in one office she shares with 3 other people?
thats obnoxious, thats using the flag in an offensive manner. When you share one office and you put up something that big, you are intruding on other peoples space. you have to share that space, and just because its the flag or a picture of jesus, doesn't give you the right to intrude on an already confined area.
if you love the flag so much, do something for it. Don't look for pity for being obnoxious and using the flag as a tool.