Understanding Americas debt

[Rich Hupper]

Can someone explain to me what exactly would happen if America defaults on its debt?

If America has never defaulted in the past can you give me an example of another country that has defaulted and what happened to them afterwards.

Who owns the debt?

What happens to the average middleclass worker? Not able to withdraw money from the bank? 401k losses value?

I wish this stuff was taught in school so people could understand it better and make better choices in who represents them.