"As parents, we deserve answers as to whether these decisions are based on science or the avoidance of liability."
O'Neal is the only professional athlete to double as a platinum recording artist.
Students who've already agreed to the pledge may void the acknowledgement in order to agree to a revised copy.
"Even if we cannot gather physically, the fight against childhood cancer won't stop until there is a cure."
The updated language removes references to "personal injury, illness, permanent disability, or death."
To date, Penn State has amassed more than two million pieces of personal protective equipment.