- The US once suffered a "mini-default" in 1979, thanks in part to glitchy word-processing equipment.
- The incident caused Treasury yields to spike up by 60 basis points or 0.6 percent and cost billions long-term.
- The US is now flirting with a full default as Republicans in Congress demand spending cuts in exchange for paying America's debt.
There's a looming possibility that the United States could soon default on its debt, but it actually wouldn't be the first time the US didn't pay its bills on time.