A bank would normally keep AAA assets happily, and hold them to maturity in many instances.
Having to sell them in a rising interest rate environment is where all hell can break loose.
No one wants to buy a UST paying 0.89% when T-bills pay 4.5%, so you have to sell it at a loss to raise cash.
A bank without cash is a failed bank.
Be kind to your banker. He's not having a good week. Even if he didn't pay you interest like he should have since 2008.
