... the precious snowflakes have a complete meltdown if they see a Confederate flag, even in the context of learning the history of the U.S. Civil War. 
http://www.thenewamerican.com/culture/education/item/25265-teacher-forced-out-for-using-confederate-flag-in-civil-war-history-lesson
"But the school district argued that it did not really matter how the flag was used during the Civil War; it should not be seen by students today. 'We recognize that regardless of context, to many of our students, families, and staff, the Confederate flag is a racist symbol of hate. Although this matter is under investigation, it is important to reiterate: Any employee who is found to engage in behavior that creates an unsafe environment for students will face full consequences, including the possibility of initiating termination proceedings.'"
WOW - the snowflakes running this school district are abject morons!
One wonders ... what will these cowardly lil' weenies do when they see the ISIS flag comin' at 'em, eh?