I listened to the NASA briefing also what they did not say was the tank has been redesigned a couple times (for weight savings)and contains Liquids at Cryogenic Temperature on the Florida coast at maybe 80%+ humidity.
This is the second instance of tank insulation failure; there is Alternate landing areas designated for takeoff emergencies.
Like the Challenger failure originally the boosters were one Piece and to be done in Florida then Morton got involved and the framacated joints and the assembly headaches began.
Personally I am a little disappointed in This NASA Like I said they need to clean house starting with the two that gave the briefing!But maybe even they are victimized by Quotas too nowdays.
They are most definitely not the Old no Bull**** Guys who went to the Moon!