If a person's FDIC insured bank goes under, the doors usually re-open again in just a few days and the bank functions under a new name (with new faces behind the counters) using the same old account numbers. If many customers then want to take all their money out of the bank at that time, things start to get tricky...
When can customers expect their FDIC payout, does it take 4 days or 40 weeks to get all the money that was in their account (up to the new 250k limit)? Or, does the FDIC put them on an allowance, by only making small percentage periodic payouts, spread over decades? ...to each according to his need.