The answer is: Federal Deposit Insurance Corporation
The Federal Deposit Insurance Corporation is a federal agency established in 1934 that guarantees depositors' savings up to $250,000 per account in most commercial banks, savings banks and savings associations. Therefore, if the bank fails, deposits are protected up to $250.000.
It would be "rope" that led to the closing of the open range, as farmers started to close off their land to other people and cattle. Barbed wire was not generally used.