A 13-year-old student was brought before her school's principal. The principal had found in the student's day planner several knives and lighters and a cigarette. The student admitted that the planner was hers but said that she had loaned it to her friend and that the items must be her friend's. The principal then showed the student a number of pain killers that were banned from the school absent advance permission and said he had a report that the student had distributed such pills to others. The student said she did not know anything about the pills, but allowed the principal's assistant to search her outer clothing and backpack. No contraband was found. The principal then sent the student to the school nurse, who had her remove her outer clothing and pull her underwear away from body so if any drugs were hidden in them, they would fall out. No drugs were found, and the student brought an action claiming that the search violated her constitutional rights. Is she correct? Why/why not