... 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?

The essential American soul is hard, isolate, stoic, and a killer. It has never yet melted. ~ D.H. Lawrence