Tuesday's Saturday Morning Breakfast Cereal
"Safety" is always a trade-off. 9/11 and the totalitarian attitudes that enabled it and are enabled by it have convinced the average American that safety has absolute value. It doesn't. It always costs something: money, convenience, productivity, or as here, the opportunity to learn.
But that's OK with the totalitarian mindset: the worse educated their masses, the better for those who want to control them.