I'd like to add that it's not just T-Bill buyers. Banks tend to buy T-Bills for a place park cash. Even if you don't buy T-Bills you would be effected by a defa

I'd like to add that it's not just T-Bill buyers. Banks tend to buy T-Bills for a place park cash. Even if you don't buy T-Bills you would be effected by a default if you have your money in a bank that's expecting some T-Bills to mature at the time of the (potential) default.