Apparently two atheist students had their overly sensitive feelings hurt which led to the reprimand.
Via Fox News:
A Florida high school student was disciplined after a national atheist organization took offense when he concluded the morning announcements by saying “God Bless America.”
A spokesperson for the Nassau County School District told me the student at Yulee High School deviated from the approved script on the morning of Feb. 9th and uttered the words “God Bless America” — apparently causing angst among two atheist students.
“It wasn’t part of the scripted morning announcements,” district spokesperson Sharyl Wood said. “The principal took the appropriate steps in speaking with the student and disciplining the student.”
Instead of reporting their angst to the principal, the atheist students reached out to the American Humanist Association. The AHA’s legal arm – the Appignani Humanist Legal Center — fired off a testy letter to the principal and school district on the students’ behalf.