Epic fail. Did the kids mean disrespect? To be honest yes, probably. Unless that's the way they dress every day they clearly meant to antangonize the hispanics at their school, and if anything, the admin tried to make them change to avoid a ugly racial situation. But this is America and you should be able to wear a patriotic shirt at school, even if your intention is race baiting. Go ahead and wear your patriot gear on Cinco de Mayo, but don't come crying to me when some cholo beats you up for the disrespect.
