I find it hard to believe that ALL they were doing was wearing stuff with American flags on it, usually in school these sort of things culminate over a long period of time and then come to head as something seemingly stupid and insignificant finally ratchets the tension up a bit too far. Maybe some of you guys don't remember highschool very well, but it can be a very violent and tense time. School faculty still have to deal with this stuff on a daily basis.
I'm certain these students that wore the flag tshirts understood very clearly what sort of dilemma they were creating for the faculty, and it's quite likely that this was not the first incident between the flag wearing kids and the "mexican" kids. I think it's ridiculous to assume that anyone would get upset over a couple of kids wearing American flag tshirts IF that's all they were doing/had done in the past. There is OBVIOUSLY some major racial tensions going on in that school, and THAT is what the faculty was worried about having explode in their face.
So, they were left with two choices. Either let this minor (seemingly) benign situation go unchecked and possibly be the final little bit of intentional abrasiveness that creates a very negative environment for the CHILDREN involved, OR just ask the kids who are intentionally trying to stir the pot to just turn their shirts inside out and take the political beating that would follow.
Honestly, although we obviously don't have all the facts, a lot of this seems fairly simple. IMO the faculty did the braver thing and chose to protect the kids in that school by doing what they felt they had to do, even though they surely most have known the sort of political heyday the press would have after glazing over the ACTUAL story of continued racial tensions in school between CHILDREN. Isn't the real story here that we STILL have people having to make these ridiculous decisions because we're still teaching KIDS to hate each other based on their racial backgrounds? The fact that either side of this situation even exists bothers me a lot more than the situation itself.